310969 has 2 divisors, whose sum is σ = 310970. Its totient is φ = 310968.

The previous prime is 310949. The next prime is 310987. The reversal of 310969 is 969013.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275625 + 35344 = 525^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 310969 - 2¹⁷ = 179897 is a prime.

It is a super-2 number, since 2×310969² = 193403437922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155484 + 155485.

It is an arithmetic number, because the mean of its divisors is an integer number (155485).

2³¹⁰⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

310969 is a deficient number, since it is larger than the sum of its proper divisors (1).

310969 is an equidigital number, since it uses as much as digits as its factorization.

310969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 310969 is about 557.6459450225. The cubic root of 310969 is about 67.7494383200.

The spelling of 310969 in words is "three hundred ten thousand, nine hundred sixty-nine".