195324881 has 2 divisors, whose sum is σ = 195324882. Its totient is φ = 195324880.

The previous prime is 195324841. The next prime is 195324911. The reversal of 195324881 is 188423591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179801281 + 15523600 = 13409^2 + 3940^2 .

It is a cyclic number.

It is not a de Polignac number, because 195324881 - 2⁶ = 195324817 is a prime.

It is a super-2 number, since 2×195324881² = 76303618275328322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (195324821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97662440 + 97662441.

It is an arithmetic number, because the mean of its divisors is an integer number (97662441).

Almost surely, 2^195324881 is an apocalyptic number.

It is an amenable number.

195324881 is a deficient number, since it is larger than the sum of its proper divisors (1).

195324881 is an equidigital number, since it uses as much as digits as its factorization.

195324881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 195324881 is about 13975.8678084762. The cubic root of 195324881 is about 580.2108636783.

The spelling of 195324881 in words is "one hundred ninety-five million, three hundred twenty-four thousand, eight hundred eighty-one".