256214667 has 16 divisors (see below), whose sum is σ = 368543520. Its totient is φ = 157727232.

The previous prime is 256214657. The next prime is 256214671. The reversal of 256214667 is 766412652.

256214667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-256214667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256214627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44692 + ... + 50097.

It is an arithmetic number, because the mean of its divisors is an integer number (23033970).

Almost surely, 2^256214667 is an apocalyptic number.

256214667 is a deficient number, since it is larger than the sum of its proper divisors (112328853).

256214667 is a wasteful number, since it uses less digits than its factorization.

256214667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94862.

The product of its digits is 120960, while the sum is 39.

The square root of 256214667 is about 16006.7069380307. The cubic root of 256214667 is about 635.1378517341.

The spelling of 256214667 in words is "two hundred fifty-six million, two hundred fourteen thousand, six hundred sixty-seven".