195641923 has 2 divisors, whose sum is σ = 195641924. Its totient is φ = 195641922.

The previous prime is 195641893. The next prime is 195641951. The reversal of 195641923 is 329146591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195641923 - 2¹³ = 195633731 is a prime.

It is a super-3 number, since 3×195641923³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (195641123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97820961 + 97820962.

It is an arithmetic number, because the mean of its divisors is an integer number (97820962).

Almost surely, 2^195641923 is an apocalyptic number.

195641923 is a deficient number, since it is larger than the sum of its proper divisors (1).

195641923 is an equidigital number, since it uses as much as digits as its factorization.

195641923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 40.

The square root of 195641923 is about 13987.2056894864. The cubic root of 195641923 is about 580.5246174858.

The spelling of 195641923 in words is "one hundred ninety-five million, six hundred forty-one thousand, nine hundred twenty-three".