195485239 has 2 divisors, whose sum is σ = 195485240. Its totient is φ = 195485238.

The previous prime is 195485233. The next prime is 195485273. The reversal of 195485239 is 932584591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195485239 - 2⁷ = 195485111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195485233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97742619 + 97742620.

It is an arithmetic number, because the mean of its divisors is an integer number (97742620).

Almost surely, 2^195485239 is an apocalyptic number.

195485239 is a deficient number, since it is larger than the sum of its proper divisors (1).

195485239 is an equidigital number, since it uses as much as digits as its factorization.

195485239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 46.

The square root of 195485239 is about 13981.6035918631. The cubic root of 195485239 is about 580.3696009285.

The spelling of 195485239 in words is "one hundred ninety-five million, four hundred eighty-five thousand, two hundred thirty-nine".