138799376 has 10 divisors (see below), whose sum is σ = 268923822. Its totient is φ = 69399680.

The previous prime is 138799363. The next prime is 138799379. The reversal of 138799376 is 673997831.

It is a happy number.

138799376 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 138768400 + 30976 = 11780^2 + 176^2 .

It is not an unprimeable number, because it can be changed into a prime (138799379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4337465 + ... + 4337496.

Almost surely, 2^138799376 is an apocalyptic number.

138799376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138799376 is a deficient number, since it is larger than the sum of its proper divisors (130124446).

138799376 is an equidigital number, since it uses as much as digits as its factorization.

138799376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674969 (or 8674963 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 53.

The square root of 138799376 is about 11781.3146974351. The cubic root of 138799376 is about 517.7608054729.

The spelling of 138799376 in words is "one hundred thirty-eight million, seven hundred ninety-nine thousand, three hundred seventy-six".