138717411 has 32 divisors (see below), whose sum is σ = 219609600. Its totient is φ = 76204800.

The previous prime is 138717367. The next prime is 138717421. The reversal of 138717411 is 114717831.

It is not a de Polignac number, because 138717411 - 2⁷ = 138717283 is a prime.

It is a super-2 number, since 2×138717411² = 38485040229085842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138717421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230511 + ... + 231111.

It is an arithmetic number, because the mean of its divisors is an integer number (6862800).

Almost surely, 2^138717411 is an apocalyptic number.

138717411 is a deficient number, since it is larger than the sum of its proper divisors (80892189).

138717411 is a wasteful number, since it uses less digits than its factorization.

138717411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019.

The product of its digits is 4704, while the sum is 33.

The square root of 138717411 is about 11777.8355821433. The cubic root of 138717411 is about 517.6588678848.

It can be divided in two parts, 138717 and 411, that added together give a triangular number (139128 = T₅₂₇).

The spelling of 138717411 in words is "one hundred thirty-eight million, seven hundred seventeen thousand, four hundred eleven".