256224167 has 4 divisors (see below), whose sum is σ = 256321800. Its totient is φ = 256126536.

The previous prime is 256224127. The next prime is 256224179. The reversal of 256224167 is 761422652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256224167 - 2⁶ = 256224103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256224127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44768 + ... + 50165.

It is an arithmetic number, because the mean of its divisors is an integer number (64080450).

Almost surely, 2^256224167 is an apocalyptic number.

256224167 is a deficient number, since it is larger than the sum of its proper divisors (97633).

256224167 is an equidigital number, since it uses as much as digits as its factorization.

256224167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97632.

The product of its digits is 40320, while the sum is 35.

The square root of 256224167 is about 16007.0036858870. The cubic root of 256224167 is about 635.1457015775.

The spelling of 256224167 in words is "two hundred fifty-six million, two hundred twenty-four thousand, one hundred sixty-seven".