195165057 has 16 divisors (see below), whose sum is σ = 269153792. Its totient is φ = 125660160.

The previous prime is 195165053. The next prime is 195165073. The reversal of 195165057 is 750561591.

It is not a de Polignac number, because 195165057 - 2² = 195165053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195165053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51843 + ... + 55479.

It is an arithmetic number, because the mean of its divisors is an integer number (16822112).

Almost surely, 2^195165057 is an apocalyptic number.

It is an amenable number.

195165057 is a deficient number, since it is larger than the sum of its proper divisors (73988735).

195165057 is a wasteful number, since it uses less digits than its factorization.

195165057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248.

The product of its (nonzero) digits is 47250, while the sum is 39.

The square root of 195165057 is about 13970.1487823144. The cubic root of 195165057 is about 580.0525685607.

The spelling of 195165057 in words is "one hundred ninety-five million, one hundred sixty-five thousand, fifty-seven".