31007413 has 2 divisors, whose sum is σ = 31007414. Its totient is φ = 31007412.

The previous prime is 31007401. The next prime is 31007447. The reversal of 31007413 is 31470013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30547729 + 459684 = 5527^2 + 678^2 .

It is an emirp because it is prime and its reverse (31470013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31007413 - 2⁹ = 31006901 is a prime.

It is a super-2 number, since 2×31007413² = 1922919321905138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31007453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15503706 + 15503707.

It is an arithmetic number, because the mean of its divisors is an integer number (15503707).

Almost surely, 2^31007413 is an apocalyptic number.

It is an amenable number.

31007413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31007413 is an equidigital number, since it uses as much as digits as its factorization.

31007413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 31007413 is about 5568.4300300893. The cubic root of 31007413 is about 314.1631030873.

Adding to 31007413 its reverse (31470013), we get a palindrome (62477426).

The spelling of 31007413 in words is "thirty-one million, seven thousand, four hundred thirteen".