641276254 has 4 divisors (see below), whose sum is σ = 961914384. Its totient is φ = 320638126.

The previous prime is 641276219. The next prime is 641276263. The reversal of 641276254 is 452672146.

641276254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×641276254² = 822470467888545032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160319062 + ... + 160319065.

It is an arithmetic number, because the mean of its divisors is an integer number (240478596).

Almost surely, 2^641276254 is an apocalyptic number.

641276254 is a deficient number, since it is larger than the sum of its proper divisors (320638130).

641276254 is a wasteful number, since it uses less digits than its factorization.

641276254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320638129.

The product of its digits is 80640, while the sum is 37.

The square root of 641276254 is about 25323.4329031433. The cubic root of 641276254 is about 862.3463302226.

The spelling of 641276254 in words is "six hundred forty-one million, two hundred seventy-six thousand, two hundred fifty-four".