195270431 has 2 divisors, whose sum is σ = 195270432. Its totient is φ = 195270430.

The previous prime is 195270403. The next prime is 195270461. The reversal of 195270431 is 134072591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195270431 - 2⁶ = 195270367 is a prime.

It is a super-2 number, since 2×195270431² = 76261082445851522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195270461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97635215 + 97635216.

It is an arithmetic number, because the mean of its divisors is an integer number (97635216).

Almost surely, 2^195270431 is an apocalyptic number.

195270431 is a deficient number, since it is larger than the sum of its proper divisors (1).

195270431 is an equidigital number, since it uses as much as digits as its factorization.

195270431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 195270431 is about 13973.9196720176. The cubic root of 195270431 is about 580.1569442502.

The spelling of 195270431 in words is "one hundred ninety-five million, two hundred seventy thousand, four hundred thirty-one".