139169325 has 12 divisors (see below), whose sum is σ = 230093408. Its totient is φ = 74223600.

The previous prime is 139169311. The next prime is 139169369. The reversal of 139169325 is 523961931.

It is not a de Polignac number, because 139169325 - 2²² = 134975021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 927721 + ... + 927870.

Almost surely, 2^139169325 is an apocalyptic number.

139169325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139169325 is a deficient number, since it is larger than the sum of its proper divisors (90924083).

139169325 is a wasteful number, since it uses less digits than its factorization.

139169325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855604 (or 1855599 counting only the distinct ones).

The product of its digits is 43740, while the sum is 39.

The square root of 139169325 is about 11797.0049165032. The cubic root of 139169325 is about 518.2204020767.

The spelling of 139169325 in words is "one hundred thirty-nine million, one hundred sixty-nine thousand, three hundred twenty-five".