195516951 has 32 divisors (see below), whose sum is σ = 311869440. Its totient is φ = 106528224.

The previous prime is 195516929. The next prime is 195516961. The reversal of 195516951 is 159615591.

It is not a de Polignac number, because 195516951 - 2⁶ = 195516887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195516901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271570 + ... + 272288.

It is an arithmetic number, because the mean of its divisors is an integer number (9745920).

Almost surely, 2^195516951 is an apocalyptic number.

195516951 is a deficient number, since it is larger than the sum of its proper divisors (116352489).

195516951 is a wasteful number, since it uses less digits than its factorization.

195516951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its digits is 60750, while the sum is 42.

The square root of 195516951 is about 13982.7376074930. The cubic root of 195516951 is about 580.4009821311.

The spelling of 195516951 in words is "one hundred ninety-five million, five hundred sixteen thousand, nine hundred fifty-one".