136156880 has 40 divisors (see below), whose sum is σ = 321765864. Its totient is φ = 53568000.

The previous prime is 136156879. The next prime is 136156903. The reversal of 136156880 is 88651631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8737936 + 127418944 = 2956^2 + 11288^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9071 + ... + 18830.

Almost surely, 2^136156880 is an apocalyptic number.

136156880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136156880 is an abundant number, since it is smaller than the sum of its proper divisors (185608984).

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

136156880 is a wasteful number, since it uses less digits than its factorization.

136156880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27975 (or 27969 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 136156880 is about 11668.6280256078. The cubic root of 136156880 is about 514.4539787447.

The spelling of 136156880 in words is "one hundred thirty-six million, one hundred fifty-six thousand, eight hundred eighty".