195202001 has 2 divisors, whose sum is σ = 195202002. Its totient is φ = 195202000.

The previous prime is 195201977. The next prime is 195202003. The reversal of 195202001 is 100202591.

195202001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164454976 + 30747025 = 12824^2 + 5545^2 .

It is a cyclic number.

It is not a de Polignac number, because 195202001 - 2²² = 191007697 is a prime.

Together with 195202003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195202003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97601000 + 97601001.

It is an arithmetic number, because the mean of its divisors is an integer number (97601001).

Almost surely, 2^195202001 is an apocalyptic number.

It is an amenable number.

195202001 is a deficient number, since it is larger than the sum of its proper divisors (1).

195202001 is an equidigital number, since it uses as much as digits as its factorization.

195202001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 195202001 is about 13971.4709676541. The cubic root of 195202001 is about 580.0891668302.

Adding to 195202001 its reverse (100202591), we get a palindrome (295404592).

The spelling of 195202001 in words is "one hundred ninety-five million, two hundred two thousand, one".