256154 has 8 divisors (see below), whose sum is σ = 386688. Its totient is φ = 127260.

The previous prime is 256147. The next prime is 256163. The reversal of 256154 is 451652.

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

It is a super-2 number, since 2×256154² = 131229743432, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 256154.

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, 119 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (48336).

2²⁵⁶¹⁵⁴ is an apocalyptic number.

256154 is a deficient number, since it is larger than the sum of its proper divisors (130534).

256154 is a wasteful number, since it uses less digits than its factorization.

256154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

The product of its digits is 1200, while the sum is 23.

The square root of 256154 is about 506.1165873591. The cubic root of 256154 is about 63.5087718058.

The spelling of 256154 in words is "two hundred fifty-six thousand, one hundred fifty-four".