136515656 has 8 divisors (see below), whose sum is σ = 255966870. Its totient is φ = 68257824.

The previous prime is 136515623. The next prime is 136515671. The reversal of 136515656 is 656515631.

It can be written as a sum of positive squares in only one way, i.e., 108784900 + 27730756 = 10430^2 + 5266^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×136515656² = 37273048666220672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8532221 + ... + 8532236.

Almost surely, 2^136515656 is an apocalyptic number.

It is an amenable number.

136515656 is a deficient number, since it is larger than the sum of its proper divisors (119451214).

136515656 is a wasteful number, since it uses less digits than its factorization.

136515656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17064463 (or 17064459 counting only the distinct ones).

The product of its digits is 81000, while the sum is 38.

The square root of 136515656 is about 11683.9914412841. The cubic root of 136515656 is about 514.9054478127.

The spelling of 136515656 in words is "one hundred thirty-six million, five hundred fifteen thousand, six hundred fifty-six".