189195016 has 8 divisors (see below), whose sum is σ = 354740670. Its totient is φ = 94597504.

The previous prime is 189195011. The next prime is 189195031. The reversal of 189195016 is 610591981.

It can be written as a sum of positive squares in only one way, i.e., 189172516 + 22500 = 13754^2 + 150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 189195016.

It is not an unprimeable number, because it can be changed into a prime (189195011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11824681 + ... + 11824696.

Almost surely, 2^189195016 is an apocalyptic number.

It is an amenable number.

189195016 is a deficient number, since it is larger than the sum of its proper divisors (165545654).

189195016 is a wasteful number, since it uses less digits than its factorization.

189195016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23649383 (or 23649379 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 40.

The square root of 189195016 is about 13754.8179195510. The cubic root of 189195016 is about 574.0766690921.

The spelling of 189195016 in words is "one hundred eighty-nine million, one hundred ninety-five thousand, sixteen".