612319 has 2 divisors, whose sum is σ = 612320. Its totient is φ = 612318.

The previous prime is 612317. The next prime is 612331. The reversal of 612319 is 913216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612319 - 2¹ = 612317 is a prime.

It is a super-2 number, since 2×612319² = 749869115522, which contains 22 as substring.

Together with 612317, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306159 + 306160.

It is an arithmetic number, because the mean of its divisors is an integer number (306160).

2⁶¹²³¹⁹ is an apocalyptic number.

612319 is a deficient number, since it is larger than the sum of its proper divisors (1).

612319 is an equidigital number, since it uses as much as digits as its factorization.

612319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 22.

The square root of 612319 is about 782.5081469224. The cubic root of 612319 is about 84.9165963903.

The spelling of 612319 in words is "six hundred twelve thousand, three hundred nineteen".