11463509 has 2 divisors, whose sum is σ = 11463510. Its totient is φ = 11463508.

The previous prime is 11463461. The next prime is 11463533. The reversal of 11463509 is 90536411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11242609 + 220900 = 3353^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 11463509 - 2²⁰ = 10414933 is a prime.

It is a Sophie Germain 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 (11463709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5731754 + 5731755.

It is an arithmetic number, because the mean of its divisors is an integer number (5731755).

Almost surely, 2^11463509 is an apocalyptic number.

It is an amenable number.

11463509 is a deficient number, since it is larger than the sum of its proper divisors (1).

11463509 is an equidigital number, since it uses as much as digits as its factorization.

11463509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 11463509 is about 3385.7804122536. The cubic root of 11463509 is about 225.4788747227.

The spelling of 11463509 in words is "eleven million, four hundred sixty-three thousand, five hundred nine".