31008941 has 2 divisors, whose sum is σ = 31008942. Its totient is φ = 31008940.

The previous prime is 31008889. The next prime is 31008973. The reversal of 31008941 is 14980013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16728100 + 14280841 = 4090^2 + 3779^2 .

It is a cyclic number.

It is not a de Polignac number, because 31008941 - 2¹⁰ = 31007917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31008941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31008041) 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, 15504470 + 15504471.

It is an arithmetic number, because the mean of its divisors is an integer number (15504471).

Almost surely, 2^31008941 is an apocalyptic number.

It is an amenable number.

31008941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31008941 is an equidigital number, since it uses as much as digits as its factorization.

31008941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 31008941 is about 5568.5672304463. The cubic root of 31008941 is about 314.1682635021.

Adding to 31008941 its reverse (14980013), we get a palindrome (45988954).

The spelling of 31008941 in words is "thirty-one million, eight thousand, nine hundred forty-one".