138751375 has 16 divisors (see below), whose sum is σ = 197900352. Its totient is φ = 95143200.

The previous prime is 138751373. The next prime is 138751397. The reversal of 138751375 is 573157831.

It is not a de Polignac number, because 138751375 - 2¹ = 138751373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138751373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78412 + ... + 80161.

It is an arithmetic number, because the mean of its divisors is an integer number (12368772).

Almost surely, 2^138751375 is an apocalyptic number.

138751375 is a deficient number, since it is larger than the sum of its proper divisors (59148977).

138751375 is an equidigital number, since it uses as much as digits as its factorization.

138751375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158595 (or 158585 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 138751375 is about 11779.2773547446. The cubic root of 138751375 is about 517.7011128367.

The spelling of 138751375 in words is "one hundred thirty-eight million, seven hundred fifty-one thousand, three hundred seventy-five".