641915353 has 12 divisors (see below), whose sum is σ = 655708080. Its totient is φ = 628386336.

The previous prime is 641915333. The next prime is 641915401. The reversal of 641915353 is 353519146.

It is a happy number.

641915353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641915353 - 2⁹ = 641914841 is a prime.

It is a super-2 number, since 2×641915353² = 824110640834229218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641915333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868258 + ... + 868996.

It is an arithmetic number, because the mean of its divisors is an integer number (54642340).

Almost surely, 2^641915353 is an apocalyptic number.

It is an amenable number.

641915353 is a deficient number, since it is larger than the sum of its proper divisors (13792727).

641915353 is an equidigital number, since it uses as much as digits as its factorization.

641915353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 975 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 641915353 is about 25336.0484882706. The cubic root of 641915353 is about 862.6327079423.

The spelling of 641915353 in words is "six hundred forty-one million, nine hundred fifteen thousand, three hundred fifty-three".