310942969 has 2 divisors, whose sum is σ = 310942970. Its totient is φ = 310942968.

The previous prime is 310942967. The next prime is 310942979. The reversal of 310942969 is 969249013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281836944 + 29106025 = 16788^2 + 5395^2 .

It is a cyclic number.

It is not a de Polignac number, because 310942969 - 2¹ = 310942967 is a prime.

It is a super-2 number, since 2×310942969² = 193371059941069922, which contains 22 as substring.

Together with 310942967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (310942967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155471484 + 155471485.

It is an arithmetic number, because the mean of its divisors is an integer number (155471485).

Almost surely, 2^310942969 is an apocalyptic number.

It is an amenable number.

310942969 is a deficient number, since it is larger than the sum of its proper divisors (1).

310942969 is an equidigital number, since it uses as much as digits as its factorization.

310942969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 310942969 is about 17633.5750487529. The cubic root of 310942969 is about 677.4754784769.

The spelling of 310942969 in words is "three hundred ten million, nine hundred forty-two thousand, nine hundred sixty-nine".