641371454 has 8 divisors (see below), whose sum is σ = 974235360. Its totient is φ = 316626336.

The previous prime is 641371441. The next prime is 641371457. The reversal of 641371454 is 454173146.

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

It is a super-2 number, since 2×641371454² = 822714684012148232, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2029499 + ... + 2029814.

It is an arithmetic number, because the mean of its divisors is an integer number (121779420).

Almost surely, 2^641371454 is an apocalyptic number.

641371454 is a deficient number, since it is larger than the sum of its proper divisors (332863906).

641371454 is a wasteful number, since it uses less digits than its factorization.

641371454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059394.

The product of its digits is 40320, while the sum is 35.

The square root of 641371454 is about 25325.3125153472. The cubic root of 641371454 is about 862.3890010206.

The spelling of 641371454 in words is "six hundred forty-one million, three hundred seventy-one thousand, four hundred fifty-four".