138729411 has 12 divisors (see below), whose sum is σ = 200776888. Its totient is φ = 92306304.

The previous prime is 138729397. The next prime is 138729413. The reversal of 138729411 is 114927831.

It is a happy number.

It is not a de Polignac number, because 138729411 - 2⁵ = 138729379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138729413) 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 11 ways as a sum of consecutive naturals, for example, 10030 + ... + 19443.

Almost surely, 2^138729411 is an apocalyptic number.

138729411 is a deficient number, since it is larger than the sum of its proper divisors (62047477).

138729411 is a wasteful number, since it uses less digits than its factorization.

138729411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30002 (or 29999 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 138729411 is about 11778.3450025884. The cubic root of 138729411 is about 517.6737944593.

The spelling of 138729411 in words is "one hundred thirty-eight million, seven hundred twenty-nine thousand, four hundred eleven".