31714289 has 2 divisors, whose sum is σ = 31714290. Its totient is φ = 31714288.

The previous prime is 31714261. The next prime is 31714297. The reversal of 31714289 is 98241713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29073664 + 2640625 = 5392^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 31714289 - 2¹⁶ = 31648753 is a prime.

It is a super-3 number, since 3×31714289³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (31714229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15857144 + 15857145.

It is an arithmetic number, because the mean of its divisors is an integer number (15857145).

Almost surely, 2^31714289 is an apocalyptic number.

It is an amenable number.

31714289 is a deficient number, since it is larger than the sum of its proper divisors (1).

31714289 is an equidigital number, since it uses as much as digits as its factorization.

31714289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 31714289 is about 5631.5441044175. The cubic root of 31714289 is about 316.5325135661.

The spelling of 31714289 in words is "thirty-one million, seven hundred fourteen thousand, two hundred eighty-nine".