12545401 has 6 divisors (see below), whose sum is σ = 13789706. Its totient is φ = 11404800.

The previous prime is 12545389. The next prime is 12545411. The reversal of 12545401 is 10454521.

It can be written as a sum of positive squares in only one way, i.e., 9486400 + 3059001 = 3080^2 + 1749^2 .

It is not a de Polignac number, because 12545401 - 2⁵ = 12545369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12545411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51720 + ... + 51961.

Almost surely, 2^12545401 is an apocalyptic number.

12545401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12545401 is a deficient number, since it is larger than the sum of its proper divisors (1244305).

12545401 is a wasteful number, since it uses less digits than its factorization.

12545401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103703 (or 103692 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 12545401 is about 3541.9487573933. The cubic root of 12545401 is about 232.3600792212.

Adding to 12545401 its reverse (10454521), we get a palindrome (22999922).

The spelling of 12545401 in words is "twelve million, five hundred forty-five thousand, four hundred one".