138934017 has 12 divisors (see below), whose sum is σ = 200805904. Its totient is φ = 92565720.

The previous prime is 138934009. The next prime is 138934031. The reversal of 138934017 is 710439831.

It is a happy number.

It is not a de Polignac number, because 138934017 - 2³ = 138934009 is a prime.

It is a super-2 number, since 2×138934017² = 38605322159512578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138934067) 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, 15042 + ... + 22452.

Almost surely, 2^138934017 is an apocalyptic number.

It is an amenable number.

138934017 is a deficient number, since it is larger than the sum of its proper divisors (61871887).

138934017 is a wasteful number, since it uses less digits than its factorization.

138934017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500 (or 9497 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 138934017 is about 11787.0274878784. The cubic root of 138934017 is about 517.9281676653.

The spelling of 138934017 in words is "one hundred thirty-eight million, nine hundred thirty-four thousand, seventeen".