137638236 has 24 divisors (see below), whose sum is σ = 325027584. Its totient is φ = 45326320.

The previous prime is 137638219. The next prime is 137638243. The reversal of 137638236 is 632836731.

137638236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 137638194 and 137638203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68100 + ... + 70091.

It is an arithmetic number, because the mean of its divisors is an integer number (13542816).

Almost surely, 2^137638236 is an apocalyptic number.

It is an amenable number.

137638236 is an abundant number, since it is smaller than the sum of its proper divisors (187389348).

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

137638236 is a wasteful number, since it uses less digits than its factorization.

137638236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138281 (or 138279 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 137638236 is about 11731.9323216595. The cubic root of 137638236 is about 516.3129674009.

The spelling of 137638236 in words is "one hundred thirty-seven million, six hundred thirty-eight thousand, two hundred thirty-six".