139665152 has 36 divisors (see below), whose sum is σ = 304134936. Its totient is φ = 63482880.

The previous prime is 139665151. The next prime is 139665157. The reversal of 139665152 is 251566931.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139665151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21983 + ... + 27614.

Almost surely, 2^139665152 is an apocalyptic number.

It is an amenable number.

139665152 is an abundant number, since it is smaller than the sum of its proper divisors (164469784).

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

139665152 is an equidigital number, since it uses as much as digits as its factorization.

139665152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49624 (or 49610 counting only the distinct ones).

The product of its digits is 48600, while the sum is 38.

The square root of 139665152 is about 11818.0011846336. The cubic root of 139665152 is about 518.8351043999.

The spelling of 139665152 in words is "one hundred thirty-nine million, six hundred sixty-five thousand, one hundred fifty-two".