139356198 has 24 divisors (see below), whose sum is σ = 303797208. Its totient is φ = 46166112.

The previous prime is 139356193. The next prime is 139356221. The reversal of 139356198 is 891653931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139356193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20815 + ... + 26682.

It is an arithmetic number, because the mean of its divisors is an integer number (12658217).

Almost surely, 2^139356198 is an apocalyptic number.

139356198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

139356198 is an abundant number, since it is smaller than the sum of its proper divisors (164441010).

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

139356198 is a wasteful number, since it uses less digits than its factorization.

139356198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47668 (or 47665 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 139356198 is about 11804.9226172813. The cubic root of 139356198 is about 518.4522493561.

The spelling of 139356198 in words is "one hundred thirty-nine million, three hundred fifty-six thousand, one hundred ninety-eight".