138751379 has 8 divisors (see below), whose sum is σ = 152604480. Its totient is φ = 125352576.

The previous prime is 138751373. The next prime is 138751397. The reversal of 138751379 is 973157831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138751379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138751373) 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, 112934 + ... + 114155.

It is an arithmetic number, because the mean of its divisors is an integer number (19075560).

Almost surely, 2^138751379 is an apocalyptic number.

138751379 is a deficient number, since it is larger than the sum of its proper divisors (13853101).

138751379 is a wasteful number, since it uses less digits than its factorization.

138751379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227149.

The product of its digits is 158760, while the sum is 44.

The square root of 138751379 is about 11779.2775245343. The cubic root of 138751379 is about 517.7011178116.

The spelling of 138751379 in words is "one hundred thirty-eight million, seven hundred fifty-one thousand, three hundred seventy-nine".