192255138 has 12 divisors (see below), whose sum is σ = 416552838. Its totient is φ = 64085040.

The previous prime is 192255127. The next prime is 192255157. The reversal of 192255138 is 831552291.

192255138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 170380809 + 21874329 = 13053^2 + 4677^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5340403 + ... + 5340438.

Almost surely, 2^192255138 is an apocalyptic number.

192255138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

192255138 is an abundant number, since it is smaller than the sum of its proper divisors (224297700).

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

192255138 is a wasteful number, since it uses less digits than its factorization.

192255138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680849 (or 10680846 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 192255138 is about 13865.6099036429. The cubic root of 192255138 is about 577.1552515940.

The spelling of 192255138 in words is "one hundred ninety-two million, two hundred fifty-five thousand, one hundred thirty-eight".