195407963 has 2 divisors, whose sum is σ = 195407964. Its totient is φ = 195407962.

The previous prime is 195407939. The next prime is 195407969. The reversal of 195407963 is 369704591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195407963 - 2¹² = 195403867 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195407969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97703981 + 97703982.

It is an arithmetic number, because the mean of its divisors is an integer number (97703982).

Almost surely, 2^195407963 is an apocalyptic number.

195407963 is a deficient number, since it is larger than the sum of its proper divisors (1).

195407963 is an equidigital number, since it uses as much as digits as its factorization.

195407963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 195407963 is about 13978.8398302577. The cubic root of 195407963 is about 580.2931168038.

The spelling of 195407963 in words is "one hundred ninety-five million, four hundred seven thousand, nine hundred sixty-three".