139030172 has 12 divisors (see below), whose sum is σ = 244760880. Its totient is φ = 69098496.

The previous prime is 139030093. The next prime is 139030181. The reversal of 139030172 is 271030931.

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 3 ways as a sum of consecutive naturals, for example, 103397 + ... + 104732.

It is an arithmetic number, because the mean of its divisors is an integer number (20396740).

Almost surely, 2^139030172 is an apocalyptic number.

It is an amenable number.

139030172 is a deficient number, since it is larger than the sum of its proper divisors (105730708).

139030172 is a wasteful number, since it uses less digits than its factorization.

139030172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208300 (or 208298 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 139030172 is about 11791.1056309406. The cubic root of 139030172 is about 518.0476246071.

The spelling of 139030172 in words is "one hundred thirty-nine million, thirty thousand, one hundred seventy-two".