2611613 has 2 divisors, whose sum is σ = 2611614. Its totient is φ = 2611612.

The previous prime is 2611603. The next prime is 2611621. The reversal of 2611613 is 3161162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1968409 + 643204 = 1403^2 + 802^2 .

It is a cyclic number.

It is not a de Polignac number, because 2611613 - 2⁴ = 2611597 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2611603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305806 + 1305807.

It is an arithmetic number, because the mean of its divisors is an integer number (1305807).

2^2611613 is an apocalyptic number.

It is an amenable number.

2611613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611613 is an equidigital number, since it uses as much as digits as its factorization.

2611613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

The square root of 2611613 is about 1616.0485760026. The cubic root of 2611613 is about 137.7113092545.

Adding to 2611613 its reverse (3161162), we get a palindrome (5772775).

The spelling of 2611613 in words is "two million, six hundred eleven thousand, six hundred thirteen".