40031713 has 2 divisors, whose sum is σ = 40031714. Its totient is φ = 40031712.

The previous prime is 40031657. The next prime is 40031729. The reversal of 40031713 is 31713004.

40031713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40030929 + 784 = 6327^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 40031713 - 2²⁵ = 6477281 is a prime.

It is not a weakly prime, because it can be changed into another prime (40031113) 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, 20015856 + 20015857.

It is an arithmetic number, because the mean of its divisors is an integer number (20015857).

Almost surely, 2^40031713 is an apocalyptic number.

It is an amenable number.

40031713 is a deficient number, since it is larger than the sum of its proper divisors (1).

40031713 is an equidigital number, since it uses as much as digits as its factorization.

40031713 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 40031713 is about 6327.0619563902. The cubic root of 40031713 is about 342.0855462391.

Adding to 40031713 its reverse (31713004), we get a palindrome (71744717).

The spelling of 40031713 in words is "forty million, thirty-one thousand, seven hundred thirteen".