136920556 has 12 divisors (see below), whose sum is σ = 239737792. Its totient is φ = 68424048.

The previous prime is 136920551. The next prime is 136920599. The reversal of 136920556 is 655029631.

136920556 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (136920551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586 + ... + 16558.

Almost surely, 2^136920556 is an apocalyptic number.

It is an amenable number.

136920556 is a deficient number, since it is larger than the sum of its proper divisors (102817236).

136920556 is a wasteful number, since it uses less digits than its factorization.

136920556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18120 (or 18118 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 136920556 is about 11701.3057391045. The cubic root of 136920556 is about 515.4140083721.

The spelling of 136920556 in words is "one hundred thirty-six million, nine hundred twenty thousand, five hundred fifty-six".