31253 has 2 divisors, whose sum is σ = 31254. Its totient is φ = 31252.

The previous prime is 31249. The next prime is 31259. The reversal of 31253 is 35213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27889 + 3364 = 167^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 31253 - 2² = 31249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15626 + 15627.

It is an arithmetic number, because the mean of its divisors is an integer number (15627).

2³¹²⁵³ is an apocalyptic number.

It is an amenable number.

31253 is a deficient number, since it is larger than the sum of its proper divisors (1).

31253 is an equidigital number, since it uses as much as digits as its factorization.

31253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 14.

The square root of 31253 is about 176.7851803744. The cubic root of 31253 is about 31.4990341520.

Adding to 31253 its reverse (35213), we get a palindrome (66466).

The spelling of 31253 in words is "thirty-one thousand, two hundred fifty-three".