139247152 has 80 divisors (see below), whose sum is σ = 314979840. Its totient is φ = 58995200.

The previous prime is 139247137. The next prime is 139247159. The reversal of 139247152 is 251742931.

It is a happy number.

It is a super-2 number, since 2×139247152² = 38779538680222208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (139247159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165549 + ... + 166387.

It is an arithmetic number, because the mean of its divisors is an integer number (3937248).

Almost surely, 2^139247152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139247152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157489920).

139247152 is an abundant number, since it is smaller than the sum of its proper divisors (175732688).

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

139247152 is a wasteful number, since it uses less digits than its factorization.

139247152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 916 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 139247152 is about 11800.3030469560. The cubic root of 139247152 is about 518.3169847191.

The spelling of 139247152 in words is "one hundred thirty-nine million, two hundred forty-seven thousand, one hundred fifty-two".