309059 has 2 divisors, whose sum is σ = 309060. Its totient is φ = 309058.

The previous prime is 309037. The next prime is 309079. The reversal of 309059 is 950903.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309059 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 309059.

It is not a weakly prime, because it can be changed into another prime (309019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154529 + 154530.

It is an arithmetic number, because the mean of its divisors is an integer number (154530).

2³⁰⁹⁰⁵⁹ is an apocalyptic number.

309059 is a deficient number, since it is larger than the sum of its proper divisors (1).

309059 is an equidigital number, since it uses as much as digits as its factorization.

309059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 309059 is about 555.9307510833. The cubic root of 309059 is about 67.6104456158.

The spelling of 309059 in words is "three hundred nine thousand, fifty-nine".