641371453 has 8 divisors (see below), whose sum is σ = 664202880. Its totient is φ = 618587760.

The previous prime is 641371441. The next prime is 641371457. The reversal of 641371453 is 354173146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641371453 - 2²¹ = 639274301 is a prime.

It is a super-2 number, since 2×641371453² = 822714681446662418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641371457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16608 + ... + 39478.

It is an arithmetic number, because the mean of its divisors is an integer number (83025360).

Almost surely, 2^641371453 is an apocalyptic number.

It is an amenable number.

641371453 is a deficient number, since it is larger than the sum of its proper divisors (22831427).

641371453 is a wasteful number, since it uses less digits than its factorization.

641371453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23867.

The product of its digits is 30240, while the sum is 34.

The square root of 641371453 is about 25325.3124956041. The cubic root of 641371453 is about 862.3890005724.

The spelling of 641371453 in words is "six hundred forty-one million, three hundred seventy-one thousand, four hundred fifty-three".