139144190 has 16 divisors (see below), whose sum is σ = 251566992. Its totient is φ = 55411584.

The previous prime is 139144189. The next prime is 139144207. The reversal of 139144190 is 91441931.

139144190 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139144190² = 38722211221512200, which contains 22 as substring.

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, 28379 + ... + 32918.

It is an arithmetic number, because the mean of its divisors is an integer number (15722937).

Almost surely, 2^139144190 is an apocalyptic number.

139144190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139144190 is a deficient number, since it is larger than the sum of its proper divisors (112422802).

139144190 is a wasteful number, since it uses less digits than its factorization.

139144190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61531.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 139144190 is about 11795.9395556268. The cubic root of 139144190 is about 518.1892020642.

The spelling of 139144190 in words is "one hundred thirty-nine million, one hundred forty-four thousand, one hundred ninety".