138888035 has 24 divisors (see below), whose sum is σ = 197297520. Its totient is φ = 93234240.

The previous prime is 138887993. The next prime is 138888041. The reversal of 138888035 is 530888831.

It is not a de Polignac number, because 138888035 - 2¹⁶ = 138822499 is a prime.

It is a super-2 number, since 2×138888035² = 38579772532322450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 965 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (8220730).

Almost surely, 2^138888035 is an apocalyptic number.

138888035 is a deficient number, since it is larger than the sum of its proper divisors (58409485).

138888035 is a wasteful number, since it uses less digits than its factorization.

138888035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17699 (or 17688 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 138888035 is about 11785.0767922827. The cubic root of 138888035 is about 517.8710230309.

The spelling of 138888035 in words is "one hundred thirty-eight million, eight hundred eighty-eight thousand, thirty-five".