195202157 has 2 divisors, whose sum is σ = 195202158. Its totient is φ = 195202156.

The previous prime is 195202153. The next prime is 195202169. The reversal of 195202157 is 751202591.

It is a happy number.

195202157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190053796 + 5148361 = 13786^2 + 2269^2 .

It is a cyclic number.

It is not a de Polignac number, because 195202157 - 2² = 195202153 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195202153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97601078 + 97601079.

It is an arithmetic number, because the mean of its divisors is an integer number (97601079).

Almost surely, 2^195202157 is an apocalyptic number.

It is an amenable number.

195202157 is a deficient number, since it is larger than the sum of its proper divisors (1).

195202157 is an equidigital number, since it uses as much as digits as its factorization.

195202157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 195202157 is about 13971.4765504581. The cubic root of 195202157 is about 580.0893213605.

The spelling of 195202157 in words is "one hundred ninety-five million, two hundred two thousand, one hundred fifty-seven".