195448901 has 2 divisors, whose sum is σ = 195448902. Its totient is φ = 195448900.

The previous prime is 195448867. The next prime is 195448943. The reversal of 195448901 is 109844591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182952676 + 12496225 = 13526^2 + 3535^2 .

It is a cyclic number.

It is not a de Polignac number, because 195448901 - 2²² = 191254597 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195448961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97724450 + 97724451.

It is an arithmetic number, because the mean of its divisors is an integer number (97724451).

Almost surely, 2^195448901 is an apocalyptic number.

It is an amenable number.

195448901 is a deficient number, since it is larger than the sum of its proper divisors (1).

195448901 is an equidigital number, since it uses as much as digits as its factorization.

195448901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 195448901 is about 13980.3040381817. The cubic root of 195448901 is about 580.3336378083. Note that the first 3 decimals are identical.

The spelling of 195448901 in words is "one hundred ninety-five million, four hundred forty-eight thousand, nine hundred one".