631053 has 6 divisors (see below), whose sum is σ = 911534. Its totient is φ = 420696.

The previous prime is 631039. The next prime is 631061. The reversal of 631053 is 350136.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 116964 = 717^2 + 342^2 .

It is not a de Polignac number, because 631053 - 2⁸ = 630797 is a prime.

It is a Duffinian number.

631053 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35050 + ... + 35067.

2⁶³¹⁰⁵³ is an apocalyptic number.

It is an amenable number.

631053 is a deficient number, since it is larger than the sum of its proper divisors (280481).

631053 is a wasteful number, since it uses less digits than its factorization.

631053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70123 (or 70120 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 631053 is about 794.3884440247. The cubic root of 631053 is about 85.7739239715.

Adding to 631053 its reverse (350136), we get a palindrome (981189).

The spelling of 631053 in words is "six hundred thirty-one thousand, fifty-three".