138632712 has 32 divisors (see below), whose sum is σ = 348667200. Its totient is φ = 45932864.

The previous prime is 138632677. The next prime is 138632717. The reversal of 138632712 is 217236831.

It is not an unprimeable number, because it can be changed into a prime (138632717) 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, 13287 + ... + 21302.

It is an arithmetic number, because the mean of its divisors is an integer number (10895850).

Almost surely, 2^138632712 is an apocalyptic number.

138632712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138632712 is an abundant number, since it is smaller than the sum of its proper divisors (210034488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138632712 is a wasteful number, since it uses less digits than its factorization.

138632712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34765 (or 34761 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 138632712 is about 11774.2393384881. The cubic root of 138632712 is about 517.5534879018.

The spelling of 138632712 in words is "one hundred thirty-eight million, six hundred thirty-two thousand, seven hundred twelve".