641315 has 8 divisors (see below), whose sum is σ = 786240. Its totient is φ = 501952.

The previous prime is 641299. The next prime is 641317. The reversal of 641315 is 513146.

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

It is a cyclic number.

It is not a de Polignac number, because 641315 - 2⁴ = 641299 is a prime.

It is a super-2 number, since 2×641315² = 822569858450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2⁶⁴¹³¹⁵ is an apocalyptic number.

641315 is a deficient number, since it is larger than the sum of its proper divisors (144925).

641315 is a wasteful number, since it uses less digits than its factorization.

641315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781.

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

The square root of 641315 is about 800.8214532591. The cubic root of 641315 is about 86.2363697568.

The spelling of 641315 in words is "six hundred forty-one thousand, three hundred fifteen".