631273 has 2 divisors, whose sum is σ = 631274. Its totient is φ = 631272.

The previous prime is 631271. The next prime is 631291. The reversal of 631273 is 372136.

631273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393129 + 238144 = 627^2 + 488^2 .

It is a cyclic number.

It is not a de Polignac number, because 631273 - 2¹ = 631271 is a prime.

Together with 631271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (631271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315636 + 315637.

It is an arithmetic number, because the mean of its divisors is an integer number (315637).

2⁶³¹²⁷³ is an apocalyptic number.

It is an amenable number.

631273 is a deficient number, since it is larger than the sum of its proper divisors (1).

631273 is an equidigital number, since it uses as much as digits as its factorization.

631273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 22.

The square root of 631273 is about 794.5269032575. The cubic root of 631273 is about 85.7838904195.

The spelling of 631273 in words is "six hundred thirty-one thousand, two hundred seventy-three".