139804188 has 24 divisors (see below), whose sum is σ = 326408208. Its totient is φ = 46573056.

The previous prime is 139804177. The next prime is 139804193. The reversal of 139804188 is 881408931.

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 7 ways as a sum of consecutive naturals, for example, 28870 + ... + 33362.

It is an arithmetic number, because the mean of its divisors is an integer number (13600342).

Almost surely, 2^139804188 is an apocalyptic number.

It is an amenable number.

139804188 is an abundant number, since it is smaller than the sum of its proper divisors (186604020).

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

139804188 is a wasteful number, since it uses less digits than its factorization.

139804188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093 (or 7091 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 139804188 is about 11823.8821036071. The cubic root of 139804188 is about 519.0072132677.

The spelling of 139804188 in words is "one hundred thirty-nine million, eight hundred four thousand, one hundred eighty-eight".