641254 has 4 divisors (see below), whose sum is σ = 961884. Its totient is φ = 320626.

The previous prime is 641239. The next prime is 641261. The reversal of 641254 is 452146.

641254 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 2×641254² = 822413385032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 14.

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, 160312 + ... + 160315.

It is an arithmetic number, because the mean of its divisors is an integer number (240471).

2⁶⁴¹²⁵⁴ is an apocalyptic number.

641254 is a deficient number, since it is larger than the sum of its proper divisors (320630).

641254 is a wasteful number, since it uses less digits than its factorization.

641254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320629.

The product of its digits is 960, while the sum is 22.

The square root of 641254 is about 800.7833664606. The cubic root of 641254 is about 86.2336354866.

The spelling of 641254 in words is "six hundred forty-one thousand, two hundred fifty-four".