31153 has 2 divisors, whose sum is σ = 31154. Its totient is φ = 31152.

The previous prime is 31151. The next prime is 31159. The reversal of 31153 is 35113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23409 + 7744 = 153^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 31153 - 2¹ = 31151 is a prime.

Together with 31151, it forms a pair of twin primes.

It is the 177-th Hogben number.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (31151) by changing a digit.

It is a nontrivial repunit in base 176.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15576 + 15577.

It is an arithmetic number, because the mean of its divisors is an integer number (15577).

2³¹¹⁵³ is an apocalyptic number.

It is an amenable number.

31153 is a deficient number, since it is larger than the sum of its proper divisors (1).

31153 is an equidigital number, since it uses as much as digits as its factorization.

31153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45, while the sum is 13.

The square root of 31153 is about 176.5021246331. The cubic root of 31153 is about 31.4654025115.

Adding to 31153 its reverse (35113), we get a palindrome (66266).

It can be divided in two parts, 3 and 1153, that added together give a square (1156 = 34²).

The spelling of 31153 in words is "thirty-one thousand, one hundred fifty-three".