138757535 has 16 divisors (see below), whose sum is σ = 190512192. Its totient is φ = 95040000.

The previous prime is 138757529. The next prime is 138757579. The reversal of 138757535 is 535757831.

It is not a de Polignac number, because 138757535 - 2¹⁶ = 138691999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40385 + ... + 43685.

It is an arithmetic number, because the mean of its divisors is an integer number (11907012).

Almost surely, 2^138757535 is an apocalyptic number.

138757535 is a deficient number, since it is larger than the sum of its proper divisors (51754657).

138757535 is a wasteful number, since it uses less digits than its factorization.

138757535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514.

The product of its digits is 441000, while the sum is 44.

The square root of 138757535 is about 11779.5388279847. The cubic root of 138757535 is about 517.7087740020.

The spelling of 138757535 in words is "one hundred thirty-eight million, seven hundred fifty-seven thousand, five hundred thirty-five".