256901142 has 16 divisors (see below), whose sum is σ = 516466800. Its totient is φ = 85189632.

The previous prime is 256901063. The next prime is 256901143. The reversal of 256901142 is 241109652.

256901142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256901143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109767 + ... + 112082.

It is an arithmetic number, because the mean of its divisors is an integer number (32279175).

Almost surely, 2^256901142 is an apocalyptic number.

256901142 is an abundant number, since it is smaller than the sum of its proper divisors (259565658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256901142 is a wasteful number, since it uses less digits than its factorization.

256901142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222047.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 256901142 is about 16028.1359490117. The cubic root of 256901142 is about 635.7045867091.

The spelling of 256901142 in words is "two hundred fifty-six million, nine hundred one thousand, one hundred forty-two".