195184990 has 256 divisors, whose sum is σ = 529514496. Its totient is φ = 49766400.

The previous prime is 195184963. The next prime is 195185009. The reversal of 195184990 is 99481591.

195184990 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 195184990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5275252 + ... + 5275288.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^195184990 is an apocalyptic number.

195184990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195184990 is an abundant number, since it is smaller than the sum of its proper divisors (334329506).

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

195184990 is a wasteful number, since it uses less digits than its factorization.

195184990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 195184990 is about 13970.8621781191. The cubic root of 195184990 is about 580.0723155967.

The spelling of 195184990 in words is "one hundred ninety-five million, one hundred eighty-four thousand, nine hundred ninety".