138057719 has 12 divisors (see below), whose sum is σ = 144133080. Its totient is φ = 132226080.

The previous prime is 138057691. The next prime is 138057737. The reversal of 138057719 is 917750831.

It is not a de Polignac number, because 138057719 - 2²⁴ = 121280503 is a prime.

It is a super-2 number, since 2×138057719² = 38119867550965922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138057749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116309 + ... + 117489.

It is an arithmetic number, because the mean of its divisors is an integer number (12011090).

Almost surely, 2^138057719 is an apocalyptic number.

138057719 is a deficient number, since it is larger than the sum of its proper divisors (6075361).

138057719 is a wasteful number, since it uses less digits than its factorization.

138057719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 138057719 is about 11749.7965514302. The cubic root of 138057719 is about 516.8369614616.

The spelling of 138057719 in words is "one hundred thirty-eight million, fifty-seven thousand, seven hundred nineteen".