138902935 has 8 divisors (see below), whose sum is σ = 168793920. Its totient is φ = 109715424.

The previous prime is 138902899. The next prime is 138902963. The reversal of 138902935 is 539209831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138902935 - 2¹⁵ = 138870167 is a prime.

It is a super-2 number, since 2×138902935² = 38588050703228450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175432 + ... + 176221.

It is an arithmetic number, because the mean of its divisors is an integer number (21099240).

Almost surely, 2^138902935 is an apocalyptic number.

138902935 is a deficient number, since it is larger than the sum of its proper divisors (29890985).

138902935 is an equidigital number, since it uses as much as digits as its factorization.

138902935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351737.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 138902935 is about 11785.7089307347. The cubic root of 138902935 is about 517.8895415504.

The spelling of 138902935 in words is "one hundred thirty-eight million, nine hundred two thousand, nine hundred thirty-five".