138076556 has 6 divisors (see below), whose sum is σ = 241633980. Its totient is φ = 69038276.

The previous prime is 138076537. The next prime is 138076577. The reversal of 138076556 is 655670831.

It is a super-2 number, since 2×138076556² = 38130270633642272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17259566 + ... + 17259573.

It is an arithmetic number, because the mean of its divisors is an integer number (40272330).

Almost surely, 2^138076556 is an apocalyptic number.

It is an amenable number.

138076556 is a deficient number, since it is larger than the sum of its proper divisors (103557424).

138076556 is a wasteful number, since it uses less digits than its factorization.

138076556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34519143 (or 34519141 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 138076556 is about 11750.5981124367. The cubic root of 138076556 is about 516.8604666428.

The spelling of 138076556 in words is "one hundred thirty-eight million, seventy-six thousand, five hundred fifty-six".