256465941 has 4 divisors (see below), whose sum is σ = 341954592. Its totient is φ = 170977292.

The previous prime is 256465931. The next prime is 256465943. The reversal of 256465941 is 149564652.

256465941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 256465941 - 2⁶ = 256465877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 256465893 and 256465902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256465943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42744321 + ... + 42744326.

It is an arithmetic number, because the mean of its divisors is an integer number (85488648).

Almost surely, 2^256465941 is an apocalyptic number.

It is an amenable number.

256465941 is a deficient number, since it is larger than the sum of its proper divisors (85488651).

256465941 is an equidigital number, since it uses as much as digits as its factorization.

256465941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85488650.

The product of its digits is 259200, while the sum is 42.

The square root of 256465941 is about 16014.5540368753. The cubic root of 256465941 is about 635.3454139927.

The spelling of 256465941 in words is "two hundred fifty-six million, four hundred sixty-five thousand, nine hundred forty-one".