641351 has 4 divisors (see below), whose sum is σ = 643104. Its totient is φ = 639600.

The previous prime is 641327. The next prime is 641371. The reversal of 641351 is 153146.

641351 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 cyclic number.

It is not a de Polignac number, because 641351 - 2⁶ = 641287 is a prime.

It is a super-2 number, since 2×641351² = 822662210402, 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 (641371) 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, 95 + ... + 1136.

It is an arithmetic number, because the mean of its divisors is an integer number (160776).

2⁶⁴¹³⁵¹ is an apocalyptic number.

641351 is a deficient number, since it is larger than the sum of its proper divisors (1753).

641351 is a wasteful number, since it uses less digits than its factorization.

641351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752.

The product of its digits is 360, while the sum is 20.

The square root of 641351 is about 800.8439298640. The cubic root of 641351 is about 86.2379833430.

Adding to 641351 its reverse (153146), we get a palindrome (794497).

The spelling of 641351 in words is "six hundred forty-one thousand, three hundred fifty-one".