631453 has 2 divisors, whose sum is σ = 631454. Its totient is φ = 631452.

The previous prime is 631429. The next prime is 631457. The reversal of 631453 is 354136.

631453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582169 + 49284 = 763^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 631453 - 2⁹ = 630941 is a prime.

It is equal to p₅₁₄₃₉ and since 631453 and 51439 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631457) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315726 + 315727.

It is an arithmetic number, because the mean of its divisors is an integer number (315727).

2⁶³¹⁴⁵³ is an apocalyptic number.

It is an amenable number.

631453 is a deficient number, since it is larger than the sum of its proper divisors (1).

631453 is an equidigital number, since it uses as much as digits as its factorization.

631453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 631453 is about 794.6401701399. The cubic root of 631453 is about 85.7920430639.

Adding to 631453 its reverse (354136), we get a palindrome (985589).

The spelling of 631453 in words is "six hundred thirty-one thousand, four hundred fifty-three".