11574 has 12 divisors (see below), whose sum is σ = 25116. Its totient is φ = 3852.

The previous prime is 11551. The next prime is 11579. The reversal of 11574 is 47511.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 643 = 11574 / (1 + 1 + 5 + 7 + 4).

It is a plaindrome in base 15.

It is a nialpdrome in base 11.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11579) by changing a digit.

11574 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 304 + ... + 339.

It is an arithmetic number, because the mean of its divisors is an integer number (2093).

2¹¹⁵⁷⁴ is an apocalyptic number.

11574 is an abundant number, since it is smaller than the sum of its proper divisors (13542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11574 is a wasteful number, since it uses less digits than its factorization.

11574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 648 counting only the distinct ones).

The product of its digits is 140, while the sum is 18.

The square root of 11574 is about 107.5825264622. The cubic root of 11574 is about 22.6200985485.

Subtracting 11574 from its reverse (47511), we obtain a cube (35937 = 33³).

It can be divided in two parts, 11 and 574, that added together give a palindrome (585).

The spelling of 11574 in words is "eleven thousand, five hundred seventy-four".