195495959 has 16 divisors (see below), whose sum is σ = 212284800. Its totient is φ = 179446176.

The previous prime is 195495953. The next prime is 195495961. The reversal of 195495959 is 959594591.

It is a cyclic number.

It is not a de Polignac number, because 195495959 - 2¹⁶ = 195430423 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195495953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82412 + ... + 84750.

It is an arithmetic number, because the mean of its divisors is an integer number (13267800).

Almost surely, 2^195495959 is an apocalyptic number.

195495959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

195495959 is a deficient number, since it is larger than the sum of its proper divisors (16788841).

195495959 is a wasteful number, since it uses less digits than its factorization.

195495959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494.

The product of its digits is 3280500, while the sum is 56.

The square root of 195495959 is about 13981.9869474978. The cubic root of 195495959 is about 580.3802094847.

The spelling of 195495959 in words is "one hundred ninety-five million, four hundred ninety-five thousand, nine hundred fifty-nine".