256132807 has 18 divisors (see below), whose sum is σ = 307171592. Its totient is φ = 209198616.

The previous prime is 256132801. The next prime is 256132813. The reversal of 256132807 is 708231652.

It is a happy number.

256132807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (256132801) and next prime (256132813).

It is not a de Polignac number, because 256132807 - 2¹⁹ = 255608519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256132801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 973758 + ... + 974020.

Almost surely, 2^256132807 is an apocalyptic number.

256132807 is a deficient number, since it is larger than the sum of its proper divisors (51038785).

256132807 is an frugal number, since it uses more digits than its factorization.

256132807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 256132807 is about 16004.1496806297. The cubic root of 256132807 is about 635.0702028321.

The spelling of 256132807 in words is "two hundred fifty-six million, one hundred thirty-two thousand, eight hundred seven".