136937538 has 24 divisors (see below), whose sum is σ = 309598848. Its totient is φ = 43661112.

The previous prime is 136937527. The next prime is 136937557. The reversal of 136937538 is 835739631.

It is a junction number, because it is equal to n+sod(n) for n = 136937493 and 136937502.

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 in 11 ways as a sum of consecutive naturals, for example, 164970 + ... + 165797.

It is an arithmetic number, because the mean of its divisors is an integer number (12899952).

Almost surely, 2^136937538 is an apocalyptic number.

136937538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

136937538 is an abundant number, since it is smaller than the sum of its proper divisors (172661310).

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

136937538 is a wasteful number, since it uses less digits than its factorization.

136937538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330798 (or 330795 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 136937538 is about 11702.0313621183. The cubic root of 136937538 is about 515.4353161025.

The spelling of 136937538 in words is "one hundred thirty-six million, nine hundred thirty-seven thousand, five hundred thirty-eight".