313213519 has 2 divisors, whose sum is σ = 313213520. Its totient is φ = 313213518.

The previous prime is 313213507. The next prime is 313213561. The reversal of 313213519 is 915312313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313213519 - 2¹⁹ = 312689231 is a prime.

It is a super-2 number, since 2×313213519² = 196205416968726722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313213619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156606759 + 156606760.

It is an arithmetic number, because the mean of its divisors is an integer number (156606760).

Almost surely, 2^313213519 is an apocalyptic number.

313213519 is a deficient number, since it is larger than the sum of its proper divisors (1).

313213519 is an equidigital number, since it uses as much as digits as its factorization.

313213519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 28.

The square root of 313213519 is about 17697.8393879027. The cubic root of 313213519 is about 679.1204885076.

The spelling of 313213519 in words is "three hundred thirteen million, two hundred thirteen thousand, five hundred nineteen".