195231956 has 12 divisors (see below), whose sum is σ = 342012468. Its totient is φ = 97514112.

The previous prime is 195231941. The next prime is 195232039. The reversal of 195231956 is 659132591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 124099600 + 71132356 = 11140^2 + 8434^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21071 + ... + 28886.

It is an arithmetic number, because the mean of its divisors is an integer number (28501039).

Almost surely, 2^195231956 is an apocalyptic number.

It is an amenable number.

195231956 is a deficient number, since it is larger than the sum of its proper divisors (146780512).

195231956 is a wasteful number, since it uses less digits than its factorization.

195231956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50938 (or 50936 counting only the distinct ones).

The product of its digits is 72900, while the sum is 41.

The square root of 195231956 is about 13972.5429324801. The cubic root of 195231956 is about 580.1188381145.

The spelling of 195231956 in words is "one hundred ninety-five million, two hundred thirty-one thousand, nine hundred fifty-six".