139030190 has 16 divisors (see below), whose sum is σ = 269504928. Its totient is φ = 51334176.

The previous prime is 139030187. The next prime is 139030217. The reversal of 139030190 is 91030931.

139030190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139030190² = 38658787462872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 534602 + ... + 534861.

It is an arithmetic number, because the mean of its divisors is an integer number (16844058).

Almost surely, 2^139030190 is an apocalyptic number.

139030190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139030190 is a deficient number, since it is larger than the sum of its proper divisors (130474738).

139030190 is a wasteful number, since it uses less digits than its factorization.

139030190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069483.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 139030190 is about 11791.1063942278. The cubic root of 139030190 is about 518.0476469641.

The spelling of 139030190 in words is "one hundred thirty-nine million, thirty thousand, one hundred ninety".