139332830 has 32 divisors (see below), whose sum is σ = 308677824. Its totient is φ = 44096256.

The previous prime is 139332829. The next prime is 139332859. The reversal of 139332830 is 38233931.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 15 ways as a sum of consecutive naturals, for example, 75647 + ... + 77466.

It is an arithmetic number, because the mean of its divisors is an integer number (9646182).

Almost surely, 2^139332830 is an apocalyptic number.

139332830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139332830 is an abundant number, since it is smaller than the sum of its proper divisors (169344994).

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

139332830 is a wasteful number, since it uses less digits than its factorization.

139332830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153140.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 139332830 is about 11803.9328191921. The cubic root of 139332830 is about 518.4232687783.

The spelling of 139332830 in words is "one hundred thirty-nine million, three hundred thirty-two thousand, eight hundred thirty".