256027154 has 4 divisors (see below), whose sum is σ = 384040734. Its totient is φ = 128013576.

The previous prime is 256027141. The next prime is 256027159. The reversal of 256027154 is 451720652.

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

It can be written as a sum of positive squares in only one way, i.e., 172213129 + 83814025 = 13123^2 + 9155^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 256027154.

It is not an unprimeable number, because it can be changed into a prime (256027159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64006787 + ... + 64006790.

Almost surely, 2^256027154 is an apocalyptic number.

256027154 is a deficient number, since it is larger than the sum of its proper divisors (128013580).

256027154 is a wasteful number, since it uses less digits than its factorization.

256027154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128013579.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 256027154 is about 16000.8485399994. The cubic root of 256027154 is about 634.9828701436.

The spelling of 256027154 in words is "two hundred fifty-six million, twenty-seven thousand, one hundred fifty-four".