11545573 has 12 divisors (see below), whose sum is σ = 12747780. Its totient is φ = 10448256.

The previous prime is 11545561. The next prime is 11545577. The reversal of 11545573 is 37554511.

11545573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 134689 + 11410884 = 367^2 + 3378^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11545573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8313 + ... + 9601.

It is an arithmetic number, because the mean of its divisors is an integer number (1062315).

Almost surely, 2^11545573 is an apocalyptic number.

11545573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11545573 is a deficient number, since it is larger than the sum of its proper divisors (1202207).

11545573 is a wasteful number, since it uses less digits than its factorization.

11545573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 1355 counting only the distinct ones).

The product of its digits is 10500, while the sum is 31.

The square root of 11545573 is about 3397.8777199893. The cubic root of 11545573 is about 226.0156422723.

The spelling of 11545573 in words is "eleven million, five hundred forty-five thousand, five hundred seventy-three".