138079377 has 8 divisors (see below), whose sum is σ = 204562080. Its totient is φ = 92052900.

The previous prime is 138079307. The next prime is 138079391. The reversal of 138079377 is 773970831.

It is not a de Polignac number, because 138079377 - 2¹⁸ = 137817233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138079307) 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 7 ways as a sum of consecutive naturals, for example, 2556999 + ... + 2557052.

It is an arithmetic number, because the mean of its divisors is an integer number (25570260).

Almost surely, 2^138079377 is an apocalyptic number.

It is an amenable number.

138079377 is a deficient number, since it is larger than the sum of its proper divisors (66482703).

138079377 is an equidigital number, since it uses as much as digits as its factorization.

138079377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114060 (or 5114054 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 138079377 is about 11750.7181482665. The cubic root of 138079377 is about 516.8639865583.

The spelling of 138079377 in words is "one hundred thirty-eight million, seventy-nine thousand, three hundred seventy-seven".