11511413 has 2 divisors, whose sum is σ = 11511414. Its totient is φ = 11511412.

The previous prime is 11511391. The next prime is 11511421. The reversal of 11511413 is 31411511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11336689 + 174724 = 3367^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 11511413 - 2¹⁶ = 11445877 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11511391 and 11511400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11511433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5755706 + 5755707.

It is an arithmetic number, because the mean of its divisors is an integer number (5755707).

Almost surely, 2^11511413 is an apocalyptic number.

It is an amenable number.

11511413 is a deficient number, since it is larger than the sum of its proper divisors (1).

11511413 is an equidigital number, since it uses as much as digits as its factorization.

11511413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60, while the sum is 17.

The square root of 11511413 is about 3392.8473293091. The cubic root of 11511413 is about 225.7925171746.

Adding to 11511413 its reverse (31411511), we get a palindrome (42922924).

The spelling of 11511413 in words is "eleven million, five hundred eleven thousand, four hundred thirteen".