11544531 has 4 divisors (see below), whose sum is σ = 15392712. Its totient is φ = 7696352.

The previous prime is 11544521. The next prime is 11544541. The reversal of 11544531 is 13544511.

It is a happy number.

11544531 is digitally balanced in base 2, 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 an interprime number because it is at equal distance from previous prime (11544521) and next prime (11544541).

It is a cyclic number.

It is not a de Polignac number, because 11544531 - 2⁵ = 11544499 is a prime.

It is a super-2 number, since 2×11544531² = 266552392019922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11544521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924086 + ... + 1924091.

It is an arithmetic number, because the mean of its divisors is an integer number (3848178).

Almost surely, 2^11544531 is an apocalyptic number.

11544531 is a deficient number, since it is larger than the sum of its proper divisors (3848181).

11544531 is an equidigital number, since it uses as much as digits as its factorization.

11544531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848180.

The product of its digits is 1200, while the sum is 24.

The square root of 11544531 is about 3397.7243855263. The cubic root of 11544531 is about 226.0088426853.

The spelling of 11544531 in words is "eleven million, five hundred forty-four thousand, five hundred thirty-one".