14945281 has 4 divisors (see below), whose sum is σ = 16094932. Its totient is φ = 13795632.

The previous prime is 14945257. The next prime is 14945291. The reversal of 14945281 is 18254941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18254941 = 47 ⋅388403.

It can be written as a sum of positive squares in 2 ways, for example, as 1985281 + 12960000 = 1409^2 + 3600^2 .

It is a cyclic number.

It is not a de Polignac number, because 14945281 - 2¹⁷ = 14814209 is a prime.

It is a super-2 number, since 2×14945281² = 446722848337922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14945251) 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, 574806 + ... + 574831.

It is an arithmetic number, because the mean of its divisors is an integer number (4023733).

Almost surely, 2^14945281 is an apocalyptic number.

It is an amenable number.

14945281 is a deficient number, since it is larger than the sum of its proper divisors (1149651).

14945281 is a wasteful number, since it uses less digits than its factorization.

14945281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149650.

The product of its digits is 11520, while the sum is 34.

The square root of 14945281 is about 3865.9126994799. The cubic root of 14945281 is about 246.3209561299.

The spelling of 14945281 in words is "fourteen million, nine hundred forty-five thousand, two hundred eighty-one".