195368239 has 16 divisors (see below), whose sum is σ = 220540320. Its totient is φ = 171520000.

The previous prime is 195368189. The next prime is 195368269. The reversal of 195368239 is 932863591.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 195368239 - 2⁷ = 195368111 is a prime.

It is a super-2 number, since 2×195368239² = 76337497619922242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195368269) 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, 43407 + ... + 47695.

It is an arithmetic number, because the mean of its divisors is an integer number (13783770).

Almost surely, 2^195368239 is an apocalyptic number.

195368239 is a deficient number, since it is larger than the sum of its proper divisors (25172081).

195368239 is a wasteful number, since it uses less digits than its factorization.

195368239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442.

The product of its digits is 349920, while the sum is 46.

The square root of 195368239 is about 13977.4188962054. The cubic root of 195368239 is about 580.2537920230.

The spelling of 195368239 in words is "one hundred ninety-five million, three hundred sixty-eight thousand, two hundred thirty-nine".