195578465 has 16 divisors (see below), whose sum is σ = 243345600. Its totient is φ = 150720192.

The previous prime is 195578441. The next prime is 195578519. The reversal of 195578465 is 564875591.

It is not a de Polignac number, because 195578465 - 2⁶ = 195578401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74546 + ... + 77124.

It is an arithmetic number, because the mean of its divisors is an integer number (15209100).

Almost surely, 2^195578465 is an apocalyptic number.

It is an amenable number.

195578465 is a deficient number, since it is larger than the sum of its proper divisors (47767135).

195578465 is a wasteful number, since it uses less digits than its factorization.

195578465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136.

The product of its digits is 1512000, while the sum is 50.

The square root of 195578465 is about 13984.9370752964. The cubic root of 195578465 is about 580.4618447864.

The spelling of 195578465 in words is "one hundred ninety-five million, five hundred seventy-eight thousand, four hundred sixty-five".