631265 has 8 divisors (see below), whose sum is σ = 762048. Its totient is φ = 502000.

The previous prime is 631259. The next prime is 631271. The reversal of 631265 is 562136.

It is an interprime number because it is at equal distance from previous prime (631259) and next prime (631271).

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

It is not a de Polignac number, because 631265 - 2⁴ = 631249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 631265.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004 + ... + 1506.

It is an arithmetic number, because the mean of its divisors is an integer number (95256).

2⁶³¹²⁶⁵ is an apocalyptic number.

It is an amenable number.

631265 is a deficient number, since it is larger than the sum of its proper divisors (130783).

631265 is a wasteful number, since it uses less digits than its factorization.

631265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 1080, while the sum is 23.

The square root of 631265 is about 794.5218687991. The cubic root of 631265 is about 85.7835280438.

The spelling of 631265 in words is "six hundred thirty-one thousand, two hundred sixty-five".