195018512 has 20 divisors (see below), whose sum is σ = 406914060. Its totient is φ = 90008448.

The previous prime is 195018487. The next prime is 195018581. The reversal of 195018512 is 215810591.

It can be written as a sum of positive squares in 2 ways, for example, as 125529616 + 69488896 = 11204^2 + 8336^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468587 + ... + 469002.

It is an arithmetic number, because the mean of its divisors is an integer number (20345703).

Almost surely, 2^195018512 is an apocalyptic number.

It is an amenable number.

195018512 is an abundant number, since it is smaller than the sum of its proper divisors (211895548).

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

195018512 is a wasteful number, since it uses less digits than its factorization.

195018512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937610 (or 937604 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 32.

The square root of 195018512 is about 13964.9028639658. The cubic root of 195018512 is about 579.9073494495.

The spelling of 195018512 in words is "one hundred ninety-five million, eighteen thousand, five hundred twelve".