31462313 has 2 divisors, whose sum is σ = 31462314. Its totient is φ = 31462312.

The previous prime is 31462289. The next prime is 31462339. The reversal of 31462313 is 31326413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24970009 + 6492304 = 4997^2 + 2548^2 .

It is an emirp because it is prime and its reverse (31326413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31462313 - 2¹⁴ = 31445929 is a prime.

It is not a weakly prime, because it can be changed into another prime (31462363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15731156 + 15731157.

It is an arithmetic number, because the mean of its divisors is an integer number (15731157).

Almost surely, 2^31462313 is an apocalyptic number.

It is an amenable number.

31462313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31462313 is an equidigital number, since it uses as much as digits as its factorization.

31462313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

The square root of 31462313 is about 5609.1276505353. The cubic root of 31462313 is about 315.6919800730.

Adding to 31462313 its reverse (31326413), we get a palindrome (62788726).

The spelling of 31462313 in words is "thirty-one million, four hundred sixty-two thousand, three hundred thirteen".