313404109 has 2 divisors, whose sum is σ = 313404110. Its totient is φ = 313404108.

The previous prime is 313404053. The next prime is 313404137. The reversal of 313404109 is 901404313.

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., 210888484 + 102515625 = 14522^2 + 10125^2 .

It is a cyclic number.

It is not a de Polignac number, because 313404109 - 2¹⁵ = 313371341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313404149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156702054 + 156702055.

It is an arithmetic number, because the mean of its divisors is an integer number (156702055).

Almost surely, 2^313404109 is an apocalyptic number.

It is an amenable number.

313404109 is a deficient number, since it is larger than the sum of its proper divisors (1).

313404109 is an equidigital number, since it uses as much as digits as its factorization.

313404109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 313404109 is about 17703.2231246177. The cubic root of 313404109 is about 679.2582085416.

The spelling of 313404109 in words is "three hundred thirteen million, four hundred four thousand, one hundred nine".