31054613 has 2 divisors, whose sum is σ = 31054614. Its totient is φ = 31054612.

The previous prime is 31054609. The next prime is 31054633. The reversal of 31054613 is 31645013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17497489 + 13557124 = 4183^2 + 3682^2 .

It is a cyclic number.

It is not a de Polignac number, because 31054613 - 2² = 31054609 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (31054633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527306 + 15527307.

It is an arithmetic number, because the mean of its divisors is an integer number (15527307).

Almost surely, 2^31054613 is an apocalyptic number.

It is an amenable number.

31054613 is a deficient number, since it is larger than the sum of its proper divisors (1).

31054613 is an equidigital number, since it uses as much as digits as its factorization.

31054613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 31054613 is about 5572.6665968816. Note that the first 3 decimals coincide. The cubic root of 31054613 is about 314.3224303721.

Adding to 31054613 its reverse (31645013), we get a palindrome (62699626).

The spelling of 31054613 in words is "thirty-one million, fifty-four thousand, six hundred thirteen".