11507513 has 2 divisors, whose sum is σ = 11507514. Its totient is φ = 11507512.

The previous prime is 11507491. The next prime is 11507533. The reversal of 11507513 is 31570511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11505664 + 1849 = 3392^2 + 43^2 .

It is a cyclic number.

It is not a de Polignac number, because 11507513 - 2⁶ = 11507449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11507533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5753756 + 5753757.

It is an arithmetic number, because the mean of its divisors is an integer number (5753757).

Almost surely, 2^11507513 is an apocalyptic number.

It is an amenable number.

11507513 is a deficient number, since it is larger than the sum of its proper divisors (1).

11507513 is an equidigital number, since it uses as much as digits as its factorization.

11507513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 11507513 is about 3392.2725421169. The cubic root of 11507513 is about 225.7670152290.

The spelling of 11507513 in words is "eleven million, five hundred seven thousand, five hundred thirteen".