195997252 has 36 divisors (see below), whose sum is σ = 389202688. Its totient is φ = 86209200.

The previous prime is 195997229. The next prime is 195997253. The reversal of 195997252 is 252799591.

It is a junction number, because it is equal to n+sod(n) for n = 195997196 and 195997205.

It is not an unprimeable number, because it can be changed into a prime (195997253) 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, 8473 + ... + 21535.

Almost surely, 2^195997252 is an apocalyptic number.

It is an amenable number.

195997252 is a deficient number, since it is larger than the sum of its proper divisors (193205436).

195997252 is a wasteful number, since it uses less digits than its factorization.

195997252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13120 (or 13107 counting only the distinct ones).

The product of its digits is 510300, while the sum is 49.

The square root of 195997252 is about 13999.9018567989. The cubic root of 195997252 is about 580.8758586255.

It can be divided in two parts, 195997 and 252, that added together give a square (196249 = 443²).

The spelling of 195997252 in words is "one hundred ninety-five million, nine hundred ninety-seven thousand, two hundred fifty-two".