190761538 has 16 divisors (see below), whose sum is σ = 322225920. Its totient is φ = 83912400.

The previous prime is 190761523. The next prime is 190761541. The reversal of 190761538 is 835167091.

190761538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 190761538.

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, 139173 + ... + 140536.

It is an arithmetic number, because the mean of its divisors is an integer number (20139120).

Almost surely, 2^190761538 is an apocalyptic number.

190761538 is a deficient number, since it is larger than the sum of its proper divisors (131464382).

190761538 is a wasteful number, since it uses less digits than its factorization.

190761538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279753.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 190761538 is about 13811.6450142624. The cubic root of 190761538 is about 575.6567548107.

The spelling of 190761538 in words is "one hundred ninety million, seven hundred sixty-one thousand, five hundred thirty-eight".