13256451 has 24 divisors (see below), whose sum is σ = 21337680. Its totient is φ = 7874496.

The previous prime is 13256449. The next prime is 13256527. The reversal of 13256451 is 15465231.

13256451 is a `hidden beast` number, since 13 + 2 + 5 + 645 + 1 = 666.

It is not a de Polignac number, because 13256451 - 2¹ = 13256449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13256401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1440 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (889070).

Almost surely, 2^13256451 is an apocalyptic number.

13256451 is a deficient number, since it is larger than the sum of its proper divisors (8081229).

13256451 is a wasteful number, since it uses less digits than its factorization.

13256451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955 (or 3952 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13256451 is about 3640.9409498095. The cubic root of 13256451 is about 236.6695710371.

It can be divided in two parts, 1325 and 6451, that added together give a 5-th power (7776 = 6⁵).

The spelling of 13256451 in words is "thirteen million, two hundred fifty-six thousand, four hundred fifty-one".