195142266 has 36 divisors (see below), whose sum is σ = 464744826. Its totient is φ = 59133360.

The previous prime is 195142253. The next prime is 195142267. The reversal of 195142266 is 662241591.

195142266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 106688241 + 88454025 = 10329^2 + 9405^2 .

It is a super-2 number, since 2×195142266² = 76161007959229512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195142266.

It is not an unprimeable number, because it can be changed into a prime (195142267) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 42621 + ... + 46976.

Almost surely, 2^195142266 is an apocalyptic number.

195142266 is an abundant number, since it is smaller than the sum of its proper divisors (269602560).

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

195142266 is a wasteful number, since it uses less digits than its factorization.

195142266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89627 (or 89613 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 195142266 is about 13969.3330549458. Note that the first 3 decimals coincide. The cubic root of 195142266 is about 580.0299885406.

The spelling of 195142266 in words is "one hundred ninety-five million, one hundred forty-two thousand, two hundred sixty-six".