195453491 has 2 divisors, whose sum is σ = 195453492. Its totient is φ = 195453490.

The previous prime is 195453473. The next prime is 195453509. The reversal of 195453491 is 194354591.

195453491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (195453473) and next prime (195453509).

It is a cyclic number.

It is not a de Polignac number, because 195453491 - 2²⁶ = 128344627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195453421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97726745 + 97726746.

It is an arithmetic number, because the mean of its divisors is an integer number (97726746).

Almost surely, 2^195453491 is an apocalyptic number.

195453491 is a deficient number, since it is larger than the sum of its proper divisors (1).

195453491 is an equidigital number, since it uses as much as digits as its factorization.

195453491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 41.

The square root of 195453491 is about 13980.4681967379. The cubic root of 195453491 is about 580.3381807017.

The spelling of 195453491 in words is "one hundred ninety-five million, four hundred fifty-three thousand, four hundred ninety-one".