139425320 has 16 divisors (see below), whose sum is σ = 313707060. Its totient is φ = 55770112.

The previous prime is 139425281. The next prime is 139425329. The reversal of 139425320 is 23524931.

It can be written as a sum of positive squares in 2 ways, for example, as 138909796 + 515524 = 11786^2 + 718^2 .

It is not an unprimeable number, because it can be changed into a prime (139425329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742777 + ... + 1742856.

Almost surely, 2^139425320 is an apocalyptic number.

139425320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139425320 is an abundant number, since it is smaller than the sum of its proper divisors (174281740).

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

139425320 is a wasteful number, since it uses less digits than its factorization.

139425320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485644 (or 3485640 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 139425320 is about 11807.8499312957. The cubic root of 139425320 is about 518.5379542702.

The spelling of 139425320 in words is "one hundred thirty-nine million, four hundred twenty-five thousand, three hundred twenty".