220807313 has 2 divisors, whose sum is σ = 220807314. Its totient is φ = 220807312.

The previous prime is 220807297. The next prime is 220807331. The reversal of 220807313 is 313708022.

Together with next prime (220807331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170354704 + 50452609 = 13052^2 + 7103^2 .

It is a cyclic number.

It is not a de Polignac number, because 220807313 - 2⁴ = 220807297 is a prime.

It is not a weakly prime, because it can be changed into another prime (250807313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110403656 + 110403657.

It is an arithmetic number, because the mean of its divisors is an integer number (110403657).

Almost surely, 2^220807313 is an apocalyptic number.

It is an amenable number.

220807313 is a deficient number, since it is larger than the sum of its proper divisors (1).

220807313 is an equidigital number, since it uses as much as digits as its factorization.

220807313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 220807313 is about 14859.5865689460. The cubic root of 220807313 is about 604.4185958798.

The spelling of 220807313 in words is "two hundred twenty million, eight hundred seven thousand, three hundred thirteen".