195442907 has 16 divisors (see below), whose sum is σ = 217292544. Its totient is φ = 174300000.

The previous prime is 195442889. The next prime is 195442921. The reversal of 195442907 is 709244591.

It is a cyclic number.

It is not a de Polignac number, because 195442907 - 2⁸ = 195442651 is a prime.

It is a super-2 number, since 2×195442907² = 76395859793221298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195442957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195533 + ... + 196529.

It is an arithmetic number, because the mean of its divisors is an integer number (13580784).

Almost surely, 2^195442907 is an apocalyptic number.

195442907 is a deficient number, since it is larger than the sum of its proper divisors (21849637).

195442907 is a wasteful number, since it uses less digits than its factorization.

195442907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 195442907 is about 13980.0896635179. The cubic root of 195442907 is about 580.3277052170.

The spelling of 195442907 in words is "one hundred ninety-five million, four hundred forty-two thousand, nine hundred seven".