195731772 has 24 divisors (see below), whose sum is σ = 457435776. Its totient is φ = 65139888.

The previous prime is 195731717. The next prime is 195731773. The reversal of 195731772 is 277137591.

195731772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195731773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4968 + ... + 20399.

It is an arithmetic number, because the mean of its divisors is an integer number (19059824).

Almost surely, 2^195731772 is an apocalyptic number.

195731772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

195731772 is an abundant number, since it is smaller than the sum of its proper divisors (261704004).

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

195731772 is a wasteful number, since it uses less digits than its factorization.

195731772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26017 (or 26015 counting only the distinct ones).

The product of its digits is 92610, while the sum is 42.

The square root of 195731772 is about 13990.4171488916. The cubic root of 195731772 is about 580.6134729704.

The spelling of 195731772 in words is "one hundred ninety-five million, seven hundred thirty-one thousand, seven hundred seventy-two".