139225392 has 60 divisors (see below), whose sum is σ = 404080040. Its totient is φ = 46407168.

The previous prime is 139225351. The next prime is 139225399. The reversal of 139225392 is 293522931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (139225399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14017 + ... + 21792.

Almost surely, 2^139225392 is an apocalyptic number.

139225392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139225392 is an abundant number, since it is smaller than the sum of its proper divisors (264854648).

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

139225392 is an equidigital number, since it uses as much as digits as its factorization.

139225392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35832 (or 35814 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 139225392 is about 11799.3810007136. The cubic root of 139225392 is about 518.2899843700.

The spelling of 139225392 in words is "one hundred thirty-nine million, two hundred twenty-five thousand, three hundred ninety-two".