256125154 has 8 divisors (see below), whose sum is σ = 384663888. Its totient is φ = 127903860.

The previous prime is 256125109. The next prime is 256125161. The reversal of 256125154 is 451521652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77332 + ... + 80575.

It is an arithmetic number, because the mean of its divisors is an integer number (48082986).

Almost surely, 2^256125154 is an apocalyptic number.

256125154 is a deficient number, since it is larger than the sum of its proper divisors (128538734).

256125154 is a wasteful number, since it uses less digits than its factorization.

256125154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158720.

The product of its digits is 12000, while the sum is 31.

The square root of 256125154 is about 16003.9105846040. The cubic root of 256125154 is about 635.0638776751.

The spelling of 256125154 in words is "two hundred fifty-six million, one hundred twenty-five thousand, one hundred fifty-four".