2321519 has 2 divisors, whose sum is σ = 2321520. Its totient is φ = 2321518.

The previous prime is 2321509. The next prime is 2321531. The reversal of 2321519 is 9151232.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321519 is a prime.

It is a super-2 number, since 2×2321519² = 10778900934722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2321494 and 2321503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160759 + 1160760.

It is an arithmetic number, because the mean of its divisors is an integer number (1160760).

2^2321519 is an apocalyptic number.

2321519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321519 is an equidigital number, since it uses as much as digits as its factorization.

2321519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 2321519 is about 1523.6531757588. The cubic root of 2321519 is about 132.4110046743.

The spelling of 2321519 in words is "two million, three hundred twenty-one thousand, five hundred nineteen".