195814961 has 2 divisors, whose sum is σ = 195814962. Its totient is φ = 195814960.

The previous prime is 195814943. The next prime is 195814987. The reversal of 195814961 is 169418591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184552225 + 11262736 = 13585^2 + 3356^2 .

It is a cyclic number.

It is not a de Polignac number, because 195814961 - 2¹⁸ = 195552817 is a prime.

It is not a weakly prime, because it can be changed into another prime (195814921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97907480 + 97907481.

It is an arithmetic number, because the mean of its divisors is an integer number (97907481).

Almost surely, 2^195814961 is an apocalyptic number.

It is an amenable number.

195814961 is a deficient number, since it is larger than the sum of its proper divisors (1).

195814961 is an equidigital number, since it uses as much as digits as its factorization.

195814961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 44.

The square root of 195814961 is about 13993.3899038082. The cubic root of 195814961 is about 580.6957178584.

It can be divided in two parts, 19581 and 4961, that added together give a palindrome (24542).

The spelling of 195814961 in words is "one hundred ninety-five million, eight hundred fourteen thousand, nine hundred sixty-one".