313028609 has 2 divisors, whose sum is σ = 313028610. Its totient is φ = 313028608.

The previous prime is 313028579. The next prime is 313028647. The reversal of 313028609 is 906820313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190992400 + 122036209 = 13820^2 + 11047^2 .

It is a cyclic number.

It is not a de Polignac number, because 313028609 - 2¹² = 313024513 is a prime.

It is not a weakly prime, because it can be changed into another prime (313028659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156514304 + 156514305.

It is an arithmetic number, because the mean of its divisors is an integer number (156514305).

Almost surely, 2^313028609 is an apocalyptic number.

It is an amenable number.

313028609 is a deficient number, since it is larger than the sum of its proper divisors (1).

313028609 is an equidigital number, since it uses as much as digits as its factorization.

313028609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 313028609 is about 17692.6145326235. The cubic root of 313028609 is about 678.9868194268.

The spelling of 313028609 in words is "three hundred thirteen million, twenty-eight thousand, six hundred nine".