138735701 has 16 divisors (see below), whose sum is σ = 164115840. Its totient is φ = 116043840.

The previous prime is 138735679. The next prime is 138735713. The reversal of 138735701 is 107537831.

It is a cyclic number.

It is not a de Polignac number, because 138735701 - 2¹⁰ = 138734677 is a prime.

It is a super-2 number, since 2×138735701² = 38495189463922802, 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 (138735301) 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 15 ways as a sum of consecutive naturals, for example, 6530 + ... + 17891.

It is an arithmetic number, because the mean of its divisors is an integer number (10257240).

Almost surely, 2^138735701 is an apocalyptic number.

It is an amenable number.

138735701 is a deficient number, since it is larger than the sum of its proper divisors (25380139).

138735701 is a wasteful number, since it uses less digits than its factorization.

138735701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24476.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 138735701 is about 11778.6120150041. The cubic root of 138735701 is about 517.6816181282.

The spelling of 138735701 in words is "one hundred thirty-eight million, seven hundred thirty-five thousand, seven hundred one".