195722937 has 12 divisors (see below), whose sum is σ = 283735140. Its totient is φ = 130009248.

The previous prime is 195722927. The next prime is 195722941. The reversal of 195722937 is 739227591.

It can be written as a sum of positive squares in 2 ways, for example, as 115154361 + 80568576 = 10731^2 + 8976^2 .

It is not a de Polignac number, because 195722937 - 2⁶ = 195722873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195722892 and 195722901.

It is not an unprimeable number, because it can be changed into a prime (195722927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36762 + ... + 41747.

It is an arithmetic number, because the mean of its divisors is an integer number (23644595).

Almost surely, 2^195722937 is an apocalyptic number.

It is an amenable number.

195722937 is a deficient number, since it is larger than the sum of its proper divisors (88012203).

195722937 is a wasteful number, since it uses less digits than its factorization.

195722937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78792 (or 78789 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 195722937 is about 13990.1013934853. The cubic root of 195722937 is about 580.6047368700.

The spelling of 195722937 in words is "one hundred ninety-five million, seven hundred twenty-two thousand, nine hundred thirty-seven".