45158401 has 4 divisors (see below), whose sum is σ = 45202500. Its totient is φ = 45114304.

The previous prime is 45158371. The next prime is 45158411. The reversal of 45158401 is 10485154.

It is a Cunningham number, because it is equal to 6720²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10485154 = 2 ⋅5242577.

It can be written as a sum of positive squares in 2 ways, for example, as 40960000 + 4198401 = 6400^2 + 2049^2 .

It is a cyclic number.

It is not a de Polignac number, because 45158401 - 2¹⁷ = 45027329 is a prime.

It is a super-3 number, since 3×45158401³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45158401.

It is not an unprimeable number, because it can be changed into a prime (45158411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20476 + ... + 22573.

It is an arithmetic number, because the mean of its divisors is an integer number (11300625).

Almost surely, 2^45158401 is an apocalyptic number.

It is an amenable number.

45158401 is a deficient number, since it is larger than the sum of its proper divisors (44099).

45158401 is a wasteful number, since it uses less digits than its factorization.

45158401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44098.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 45158401 is about 6720.0000744048. Note that the first 4 decimals coincide. The cubic root of 45158401 is about 356.1061864992.

The spelling of 45158401 in words is "forty-five million, one hundred fifty-eight thousand, four hundred one".