136255568 has 20 divisors (see below), whose sum is σ = 264486420. Its totient is φ = 68001024.

The previous prime is 136255549. The next prime is 136255627. The reversal of 136255568 is 865552631.

It can be written as a sum of positive squares in 2 ways, for example, as 44249104 + 92006464 = 6652^2 + 9592^2 .

It is a super-2 number, since 2×136255568² = 37131159622005248, which contains 22 as substring.

It is a congruent number.

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, 1268 + ... + 16556.

It is an arithmetic number, because the mean of its divisors is an integer number (13224321).

Almost surely, 2^136255568 is an apocalyptic number.

It is an amenable number.

136255568 is a deficient number, since it is larger than the sum of its proper divisors (128230852).

136255568 is a wasteful number, since it uses less digits than its factorization.

136255568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854 (or 15848 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 136255568 is about 11672.8560344073. The cubic root of 136255568 is about 514.5782426891.

The spelling of 136255568 in words is "one hundred thirty-six million, two hundred fifty-five thousand, five hundred sixty-eight".