313109 has 2 divisors, whose sum is σ = 313110. Its totient is φ = 313108.

The previous prime is 313087. The next prime is 313127. The reversal of 313109 is 901313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 10609 = 550^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 313109 - 2¹² = 309013 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313109.

It is not a weakly prime, because it can be changed into another prime (313129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156554 + 156555.

It is an arithmetic number, because the mean of its divisors is an integer number (156555).

2³¹³¹⁰⁹ is an apocalyptic number.

It is an amenable number.

313109 is a deficient number, since it is larger than the sum of its proper divisors (1).

313109 is an equidigital number, since it uses as much as digits as its factorization.

313109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 313109 is about 559.5614354117. The cubic root of 313109 is about 67.9044939522.

The spelling of 313109 in words is "three hundred thirteen thousand, one hundred nine".