2665319 has 2 divisors, whose sum is σ = 2665320. Its totient is φ = 2665318.

The previous prime is 2665291. The next prime is 2665321. The reversal of 2665319 is 9135662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2665319 - 2⁸ = 2665063 is a prime.

It is a super-2 number, since 2×2665319² = 14207850743522, which contains 22 as substring.

Together with 2665321, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2667319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332659 + 1332660.

It is an arithmetic number, because the mean of its divisors is an integer number (1332660).

2^2665319 is an apocalyptic number.

2665319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665319 is an equidigital number, since it uses as much as digits as its factorization.

2665319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 2665319 is about 1632.5804727486. The cubic root of 2665319 is about 138.6488904368.

The spelling of 2665319 in words is "two million, six hundred sixty-five thousand, three hundred nineteen".