138370015207 has 4 divisors (see below), whose sum is σ = 139380015456. Its totient is φ = 137360014960.

The previous prime is 138370015181. The next prime is 138370015241. The reversal of 138370015207 is 702510073831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138370015207 - 2⁷ = 138370015079 is a prime.

It is a super-2 number, since 2×138370015207² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138370018207) 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, 504999919 + ... + 505000192.

It is an arithmetic number, because the mean of its divisors is an integer number (34845003864).

Almost surely, 2^138370015207 is an apocalyptic number.

138370015207 is a deficient number, since it is larger than the sum of its proper divisors (1010000249).

138370015207 is a wasteful number, since it uses less digits than its factorization.

138370015207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010000248.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 138370015207 in words is "one hundred thirty-eight billion, three hundred seventy million, fifteen thousand, two hundred seven".