11563745 has 4 divisors (see below), whose sum is σ = 13876500. Its totient is φ = 9250992.

The previous prime is 11563729. The next prime is 11563751. The reversal of 11563745 is 54736511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54736511 = 19 ⋅2880869.

It can be written as a sum of positive squares in 2 ways, for example, as 4963984 + 6599761 = 2228^2 + 2569^2 .

It is a cyclic number.

It is not a de Polignac number, because 11563745 - 2⁴ = 11563729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156370 + ... + 1156379.

It is an arithmetic number, because the mean of its divisors is an integer number (3469125).

Almost surely, 2^11563745 is an apocalyptic number.

It is an amenable number.

11563745 is a deficient number, since it is larger than the sum of its proper divisors (2312755).

11563745 is an equidigital number, since it uses as much as digits as its factorization.

11563745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312754.

The product of its digits is 12600, while the sum is 32.

The square root of 11563745 is about 3400.5506906970. The cubic root of 11563745 is about 226.1341582129.

The spelling of 11563745 in words is "eleven million, five hundred sixty-three thousand, seven hundred forty-five".