138716375 has 32 divisors (see below), whose sum is σ = 201277440. Its totient is φ = 93472800.

The previous prime is 138716371. The next prime is 138716377. The reversal of 138716375 is 573617831.

It is not a de Polignac number, because 138716375 - 2² = 138716371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138716371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50282 + ... + 52968.

It is an arithmetic number, because the mean of its divisors is an integer number (6289920).

Almost surely, 2^138716375 is an apocalyptic number.

138716375 is a deficient number, since it is larger than the sum of its proper divisors (62561065).

138716375 is an equidigital number, since it uses as much as digits as its factorization.

138716375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768 (or 2758 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 138716375 is about 11777.7916011449. The cubic root of 138716375 is about 517.6575791835.

The spelling of 138716375 in words is "one hundred thirty-eight million, seven hundred sixteen thousand, three hundred seventy-five".