31346969 has 2 divisors, whose sum is σ = 31346970. Its totient is φ = 31346968.

The previous prime is 31346947. The next prime is 31346971. The reversal of 31346969 is 96964313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27164944 + 4182025 = 5212^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 31346969 - 2²⁰ = 30298393 is a prime.

It is a super-2 number, since 2×31346969² = 1965264930973922, which contains 22 as substring.

Together with 31346971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31346989) 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, 15673484 + 15673485.

It is an arithmetic number, because the mean of its divisors is an integer number (15673485).

Almost surely, 2^31346969 is an apocalyptic number.

It is an amenable number.

31346969 is a deficient number, since it is larger than the sum of its proper divisors (1).

31346969 is an equidigital number, since it uses as much as digits as its factorization.

31346969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 31346969 is about 5598.8363969668. The cubic root of 31346969 is about 315.3057214963.

The spelling of 31346969 in words is "thirty-one million, three hundred forty-six thousand, nine hundred sixty-nine".