195748951 has 2 divisors, whose sum is σ = 195748952. Its totient is φ = 195748950.

The previous prime is 195748921. The next prime is 195749017. The reversal of 195748951 is 159847591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195748951 - 2⁷ = 195748823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 195748895 and 195748904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195748921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97874475 + 97874476.

It is an arithmetic number, because the mean of its divisors is an integer number (97874476).

Almost surely, 2^195748951 is an apocalyptic number.

195748951 is a deficient number, since it is larger than the sum of its proper divisors (1).

195748951 is an equidigital number, since it uses as much as digits as its factorization.

195748951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 49.

The square root of 195748951 is about 13991.0310913814. The cubic root of 195748951 is about 580.6304589149.

The spelling of 195748951 in words is "one hundred ninety-five million, seven hundred forty-eight thousand, nine hundred fifty-one".