195959453 has 4 divisors (see below), whose sum is σ = 196011900. Its totient is φ = 195907008.

The previous prime is 195959447. The next prime is 195959501. The reversal of 195959453 is 354959591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102779044 + 93180409 = 10138^2 + 9653^2 .

It is a cyclic number.

It is not a de Polignac number, because 195959453 - 2¹⁸ = 195697309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195929453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20150 + ... + 28247.

It is an arithmetic number, because the mean of its divisors is an integer number (49002975).

Almost surely, 2^195959453 is an apocalyptic number.

It is an amenable number.

195959453 is a deficient number, since it is larger than the sum of its proper divisors (52447).

195959453 is an equidigital number, since it uses as much as digits as its factorization.

195959453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52446.

The product of its digits is 1093500, while the sum is 50.

The square root of 195959453 is about 13998.5518179560. The cubic root of 195959453 is about 580.8385146696.

The spelling of 195959453 in words is "one hundred ninety-five million, nine hundred fifty-nine thousand, four hundred fifty-three".