31134133 has 2 divisors, whose sum is σ = 31134134. Its totient is φ = 31134132.

The previous prime is 31134127. The next prime is 31134143. The reversal of 31134133 is 33143113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29343889 + 1790244 = 5417^2 + 1338^2 .

It is a cyclic number.

It is not a de Polignac number, because 31134133 - 2⁵ = 31134101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31134133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31134113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15567066 + 15567067.

It is an arithmetic number, because the mean of its divisors is an integer number (15567067).

Almost surely, 2^31134133 is an apocalyptic number.

It is an amenable number.

31134133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31134133 is an equidigital number, since it uses as much as digits as its factorization.

31134133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 19.

The square root of 31134133 is about 5579.7968601016. The cubic root of 31134133 is about 314.5904916265.

Adding to 31134133 its reverse (33143113), we get a palindrome (64277246).

The spelling of 31134133 in words is "thirty-one million, one hundred thirty-four thousand, one hundred thirty-three".