139423592 has 32 divisors (see below), whose sum is σ = 325926720. Its totient is φ = 54320640.

The previous prime is 139423591. The next prime is 139423633. The reversal of 139423592 is 295324931.

It is a happy number.

It is a super-4 number, since 4×139423592⁴ (a number of 34 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (139423591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112553 + ... + 113784.

It is an arithmetic number, because the mean of its divisors is an integer number (10185210).

Almost surely, 2^139423592 is an apocalyptic number.

It is an amenable number.

139423592 is an abundant number, since it is smaller than the sum of its proper divisors (186503128).

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

139423592 is a wasteful number, since it uses less digits than its factorization.

139423592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226361 (or 226357 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 139423592 is about 11807.7767594073. The cubic root of 139423592 is about 518.5358120546.

The spelling of 139423592 in words is "one hundred thirty-nine million, four hundred twenty-three thousand, five hundred ninety-two".