139874189 has 16 divisors (see below), whose sum is σ = 174585600. Its totient is φ = 109105920.

The previous prime is 139874167. The next prime is 139874233. The reversal of 139874189 is 981478931.

139874189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139874189 - 2⁸ = 139873933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139874129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4364 + ... + 17285.

It is an arithmetic number, because the mean of its divisors is an integer number (10911600).

Almost surely, 2^139874189 is an apocalyptic number.

It is an amenable number.

139874189 is a deficient number, since it is larger than the sum of its proper divisors (34711411).

139874189 is a wasteful number, since it uses less digits than its factorization.

139874189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21740.

The product of its digits is 435456, while the sum is 50.

The square root of 139874189 is about 11826.8418861503. The cubic root of 139874189 is about 519.0938224087.

The spelling of 139874189 in words is "one hundred thirty-nine million, eight hundred seventy-four thousand, one hundred eighty-nine".