256158201 has 24 divisors (see below), whose sum is σ = 378889056. Its totient is φ = 153778560.

The previous prime is 256158197. The next prime is 256158223. The reversal of 256158201 is 102851652.

It is not a de Polignac number, because 256158201 - 2² = 256158197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256158251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14626 + ... + 26948.

It is an arithmetic number, because the mean of its divisors is an integer number (15787044).

Almost surely, 2^256158201 is an apocalyptic number.

It is an amenable number.

256158201 is a deficient number, since it is larger than the sum of its proper divisors (122730855).

256158201 is a wasteful number, since it uses less digits than its factorization.

256158201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12393 (or 12380 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 256158201 is about 16004.9430177055. The cubic root of 256158201 is about 635.0911899130.

The spelling of 256158201 in words is "two hundred fifty-six million, one hundred fifty-eight thousand, two hundred one".