128107190 has 32 divisors (see below), whose sum is σ = 241090560. Its totient is φ = 48952800.

The previous prime is 128107169. The next prime is 128107207. The reversal of 128107190 is 91701821.

It is a super-2 number, since 2×128107190² = 32822904259392200, 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 15 ways as a sum of consecutive naturals, for example, 21875 + ... + 27105.

It is an arithmetic number, because the mean of its divisors is an integer number (7534080).

Almost surely, 2^128107190 is an apocalyptic number.

128107190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128107190 is a deficient number, since it is larger than the sum of its proper divisors (112983370).

128107190 is a wasteful number, since it uses less digits than its factorization.

128107190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 128107190 is about 11318.4446811388. Note that the first 3 decimals coincide. The cubic root of 128107190 is about 504.1090587670.

The spelling of 128107190 in words is "one hundred twenty-eight million, one hundred seven thousand, one hundred ninety".