195864401 has 2 divisors, whose sum is σ = 195864402. Its totient is φ = 195864400.

The previous prime is 195864397. The next prime is 195864413. The reversal of 195864401 is 104468591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157126225 + 38738176 = 12535^2 + 6224^2 .

It is a cyclic number.

It is not a de Polignac number, because 195864401 - 2² = 195864397 is a prime.

It is not a weakly prime, because it can be changed into another prime (195864001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97932200 + 97932201.

It is an arithmetic number, because the mean of its divisors is an integer number (97932201).

Almost surely, 2^195864401 is an apocalyptic number.

It is an amenable number.

195864401 is a deficient number, since it is larger than the sum of its proper divisors (1).

195864401 is an equidigital number, since it uses as much as digits as its factorization.

195864401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 195864401 is about 13995.1563406773. The cubic root of 195864401 is about 580.7445857287.

The spelling of 195864401 in words is "one hundred ninety-five million, eight hundred sixty-four thousand, four hundred one".