139220198 has 16 divisors (see below), whose sum is σ = 227978016. Its totient is φ = 63374400.

The previous prime is 139220167. The next prime is 139220203. The reversal of 139220198 is 891022931.

It is a Smith number, since the sum of its digits (35) 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34778 + ... + 38573.

It is an arithmetic number, because the mean of its divisors is an integer number (14248626).

Almost surely, 2^139220198 is an apocalyptic number.

139220198 is a deficient number, since it is larger than the sum of its proper divisors (88757818).

139220198 is a wasteful number, since it uses less digits than its factorization.

139220198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73439.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 139220198 is about 11799.1609023693. The cubic root of 139220198 is about 518.2835391098.

The spelling of 139220198 in words is "one hundred thirty-nine million, two hundred twenty thousand, one hundred ninety-eight".