195215775 has 12 divisors (see below), whose sum is σ = 322756872. Its totient is φ = 104115040.

The previous prime is 195215767. The next prime is 195215827. The reversal of 195215775 is 577512591.

It is not a de Polignac number, because 195215775 - 2³ = 195215767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301364 + ... + 1301513.

It is an arithmetic number, because the mean of its divisors is an integer number (26896406).

Almost surely, 2^195215775 is an apocalyptic number.

195215775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195215775 is a deficient number, since it is larger than the sum of its proper divisors (127541097).

195215775 is a wasteful number, since it uses less digits than its factorization.

195215775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602890 (or 2602885 counting only the distinct ones).

The product of its digits is 110250, while the sum is 42.

The square root of 195215775 is about 13971.9638920232. The cubic root of 195215775 is about 580.1028107481.

The spelling of 195215775 in words is "one hundred ninety-five million, two hundred fifteen thousand, seven hundred seventy-five".