11365523 has 4 divisors (see below), whose sum is σ = 12239808. Its totient is φ = 10491240.

The previous prime is 11365513. The next prime is 11365559. The reversal of 11365523 is 32556311.

11365523 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11365523 is a prime.

It is a super-2 number, since 2×11365523² = 258350226127058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11365492 and 11365501.

It is not an unprimeable number, because it can be changed into a prime (11365513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437123 + ... + 437148.

It is an arithmetic number, because the mean of its divisors is an integer number (3059952).

Almost surely, 2^11365523 is an apocalyptic number.

11365523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11365523 is a deficient number, since it is larger than the sum of its proper divisors (874285).

11365523 is an equidigital number, since it uses as much as digits as its factorization.

11365523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874284.

The product of its digits is 2700, while the sum is 26.

The square root of 11365523 is about 3371.2791340973. The cubic root of 11365523 is about 224.8345977807.

The spelling of 11365523 in words is "eleven million, three hundred sixty-five thousand, five hundred twenty-three".