138747156 has 12 divisors (see below), whose sum is σ = 323743392. Its totient is φ = 46249048.

The previous prime is 138747131. The next prime is 138747181. The reversal of 138747156 is 651747831.

It is an interprime number because it is at equal distance from previous prime (138747131) and next prime (138747181).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5781120 + ... + 5781143.

It is an arithmetic number, because the mean of its divisors is an integer number (26978616).

Almost surely, 2^138747156 is an apocalyptic number.

It is an amenable number.

138747156 is an abundant number, since it is smaller than the sum of its proper divisors (184996236).

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

138747156 is a wasteful number, since it uses less digits than its factorization.

138747156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11562270 (or 11562268 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 138747156 is about 11779.0982676943. The cubic root of 138747156 is about 517.6958655538.

The spelling of 138747156 in words is "one hundred thirty-eight million, seven hundred forty-seven thousand, one hundred fifty-six".