139552712 has 32 divisors (see below), whose sum is σ = 284974200. Its totient is φ = 63681024.

The previous prime is 139552697. The next prime is 139552723. The reversal of 139552712 is 217255931.

It can be written as a sum of positive squares in 4 ways, for example, as 33339076 + 106213636 = 5774^2 + 10306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1718 + ... + 16794.

Almost surely, 2^139552712 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 139552712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142487100).

139552712 is an abundant number, since it is smaller than the sum of its proper divisors (145421488).

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

139552712 is a wasteful number, since it uses less digits than its factorization.

139552712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15185 (or 15181 counting only the distinct ones).

The product of its digits is 18900, while the sum is 35.

The square root of 139552712 is about 11813.2430771571. The cubic root of 139552712 is about 518.6958344374.

It can be divided in two parts, 139552 and 712, that multiplied together give a square (99361024 = 9968²).

The spelling of 139552712 in words is "one hundred thirty-nine million, five hundred fifty-two thousand, seven hundred twelve".