641360453 has 4 divisors (see below), whose sum is σ = 644400288. Its totient is φ = 638320620.

The previous prime is 641360393. The next prime is 641360477. The reversal of 641360453 is 354063146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 641360453 - 2²⁶ = 574251589 is a prime.

It is a super-2 number, since 2×641360453² = 822686461344730418, 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 (641360053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519601 + ... + 1520022.

It is an arithmetic number, because the mean of its divisors is an integer number (161100072).

Almost surely, 2^641360453 is an apocalyptic number.

It is an amenable number.

641360453 is a deficient number, since it is larger than the sum of its proper divisors (3039835).

641360453 is a wasteful number, since it uses less digits than its factorization.

641360453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039834.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 641360453 is about 25325.0953206498. The cubic root of 641360453 is about 862.3840703388.

It can be divided in two parts, 6413 and 60453, that added together give a palindrome (66866).

The spelling of 641360453 in words is "six hundred forty-one million, three hundred sixty thousand, four hundred fifty-three".