195251272 has 8 divisors (see below), whose sum is σ = 366096150. Its totient is φ = 97625632.

The previous prime is 195251269. The next prime is 195251291. The reversal of 195251272 is 272152591.

It can be written as a sum of positive squares in only one way, i.e., 99720196 + 95531076 = 9986^2 + 9774^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12203197 + ... + 12203212.

Almost surely, 2^195251272 is an apocalyptic number.

It is an amenable number.

195251272 is a deficient number, since it is larger than the sum of its proper divisors (170844878).

195251272 is a wasteful number, since it uses less digits than its factorization.

195251272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24406415 (or 24406411 counting only the distinct ones).

The product of its digits is 12600, while the sum is 34.

The square root of 195251272 is about 13973.2341281466. The cubic root of 195251272 is about 580.1379695555.

The spelling of 195251272 in words is "one hundred ninety-five million, two hundred fifty-one thousand, two hundred seventy-two".