195803453 has 2 divisors, whose sum is σ = 195803454. Its totient is φ = 195803452.

The previous prime is 195803449. The next prime is 195803483. The reversal of 195803453 is 354308591.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113592964 + 82210489 = 10658^2 + 9067^2 .

It is a cyclic number.

It is not a de Polignac number, because 195803453 - 2² = 195803449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195803483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97901726 + 97901727.

It is an arithmetic number, because the mean of its divisors is an integer number (97901727).

Almost surely, 2^195803453 is an apocalyptic number.

It is an amenable number.

195803453 is a deficient number, since it is larger than the sum of its proper divisors (1).

195803453 is an equidigital number, since it uses as much as digits as its factorization.

195803453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 195803453 is about 13992.9787036213. The cubic root of 195803453 is about 580.6843418511.

The spelling of 195803453 in words is "one hundred ninety-five million, eight hundred three thousand, four hundred fifty-three".