190597138 has 16 divisors (see below), whose sum is σ = 297348480. Its totient is φ = 91546416.

The previous prime is 190597129. The next prime is 190597171. The reversal of 190597138 is 831795091.

It is a junction number, because it is equal to n+sod(n) for n = 190597094 and 190597103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10456 + ... + 22147.

It is an arithmetic number, because the mean of its divisors is an integer number (18584280).

Almost surely, 2^190597138 is an apocalyptic number.

190597138 is a deficient number, since it is larger than the sum of its proper divisors (106751342).

190597138 is a wasteful number, since it uses less digits than its factorization.

190597138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32721.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 190597138 is about 13805.6922318296. The cubic root of 190597138 is about 575.4913385688.

The spelling of 190597138 in words is "one hundred ninety million, five hundred ninety-seven thousand, one hundred thirty-eight".