2661413 has 2 divisors, whose sum is σ = 2661414. Its totient is φ = 2661412.

The previous prime is 2661409. The next prime is 2661419. The reversal of 2661413 is 3141662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1444804 + 1216609 = 1202^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 2661413 - 2² = 2661409 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2661419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330706 + 1330707.

It is an arithmetic number, because the mean of its divisors is an integer number (1330707).

2^2661413 is an apocalyptic number.

It is an amenable number.

2661413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661413 is an equidigital number, since it uses as much as digits as its factorization.

2661413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 2661413 is about 1631.3837684616. The cubic root of 2661413 is about 138.5811277746.

Subtracting 2661413 from its reverse (3141662), we obtain a square (480249 = 693²).

The spelling of 2661413 in words is "two million, six hundred sixty-one thousand, four hundred thirteen".