195951612 has 12 divisors (see below), whose sum is σ = 457220456. Its totient is φ = 65317200.

The previous prime is 195951611. The next prime is 195951619. The reversal of 195951612 is 216159591.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195951611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8164639 + ... + 8164662.

Almost surely, 2^195951612 is an apocalyptic number.

195951612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

195951612 is an abundant number, since it is smaller than the sum of its proper divisors (261268844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195951612 is a wasteful number, since it uses less digits than its factorization.

195951612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16329308 (or 16329306 counting only the distinct ones).

The product of its digits is 24300, while the sum is 39.

The square root of 195951612 is about 13998.2717504698. The cubic root of 195951612 is about 580.8307674622.

The spelling of 195951612 in words is "one hundred ninety-five million, nine hundred fifty-one thousand, six hundred twelve".