138766276 has 24 divisors (see below), whose sum is σ = 274055040. Its totient is φ = 60900000.

The previous prime is 138766273. The next prime is 138766279. The reversal of 138766276 is 672667831.

It is an interprime number because it is at equal distance from previous prime (138766273) and next prime (138766279).

It is not an unprimeable number, because it can be changed into a prime (138766273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53100 + ... + 55651.

It is an arithmetic number, because the mean of its divisors is an integer number (11418960).

Almost surely, 2^138766276 is an apocalyptic number.

It is an amenable number.

138766276 is a deficient number, since it is larger than the sum of its proper divisors (135288764).

138766276 is a wasteful number, since it uses less digits than its factorization.

138766276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108795 (or 108793 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 138766276 is about 11779.9098468537. The cubic root of 138766276 is about 517.7196447567.

The spelling of 138766276 in words is "one hundred thirty-eight million, seven hundred sixty-six thousand, two hundred seventy-six".