195123923 has 2 divisors, whose sum is σ = 195123924. Its totient is φ = 195123922.

The previous prime is 195123883. The next prime is 195123947. The reversal of 195123923 is 329321591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195123923 - 2⁸ = 195123667 is a prime.

It is not a weakly prime, because it can be changed into another prime (195123983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97561961 + 97561962.

It is an arithmetic number, because the mean of its divisors is an integer number (97561962).

Almost surely, 2^195123923 is an apocalyptic number.

195123923 is a deficient number, since it is larger than the sum of its proper divisors (1).

195123923 is an equidigital number, since it uses as much as digits as its factorization.

195123923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 35.

The square root of 195123923 is about 13968.6764942138. The cubic root of 195123923 is about 580.0118140677.

The spelling of 195123923 in words is "one hundred ninety-five million, one hundred twenty-three thousand, nine hundred twenty-three".