13012456 has 16 divisors (see below), whose sum is σ = 25058340. Its totient is φ = 6330240.

The previous prime is 13012427. The next prime is 13012471. The reversal of 13012456 is 65421031.

13012456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10956100 + 2056356 = 3310^2 + 1434^2 .

It is a super-2 number, since 2×13012456² = 338648022303872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21685 + ... + 22276.

Almost surely, 2^13012456 is an apocalyptic number.

It is an amenable number.

13012456 is a deficient number, since it is larger than the sum of its proper divisors (12045884).

13012456 is a wasteful number, since it uses less digits than its factorization.

13012456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44004 (or 44000 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13012456 is about 3607.2781983096. The cubic root of 13012456 is about 235.2085428122.

Adding to 13012456 its reverse (65421031), we get a palindrome (78433487).

The spelling of 13012456 in words is "thirteen million, twelve thousand, four hundred fifty-six".