138737107 has 8 divisors (see below), whose sum is σ = 146266560. Its totient is φ = 131230440.

The previous prime is 138737083. The next prime is 138737117. The reversal of 138737107 is 701737831.

138737107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138737107 - 2⁷ = 138736979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138737117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7632 + ... + 18322.

It is an arithmetic number, because the mean of its divisors is an integer number (18283320).

Almost surely, 2^138737107 is an apocalyptic number.

138737107 is a deficient number, since it is larger than the sum of its proper divisors (7529453).

138737107 is a wasteful number, since it uses less digits than its factorization.

138737107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11393.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 138737107 is about 11778.6716993046. The cubic root of 138737107 is about 517.6833669160.

The spelling of 138737107 in words is "one hundred thirty-eight million, seven hundred thirty-seven thousand, one hundred seven".