12041531 has 4 divisors (see below), whose sum is σ = 12054432. Its totient is φ = 12028632.

The previous prime is 12041527. The next prime is 12041551. The reversal of 12041531 is 13514021.

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

It is a cyclic number.

It is not a de Polignac number, because 12041531 - 2² = 12041527 is a prime.

It is a super-2 number, since 2×12041531² = 289996937647922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12041501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4931 + ... + 6956.

It is an arithmetic number, because the mean of its divisors is an integer number (3013608).

Almost surely, 2^12041531 is an apocalyptic number.

12041531 is a deficient number, since it is larger than the sum of its proper divisors (12901).

12041531 is a wasteful number, since it uses less digits than its factorization.

12041531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12900.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12041531 is about 3470.0909209990. The cubic root of 12041531 is about 229.2066617725.

Adding to 12041531 its reverse (13514021), we get a palindrome (25555552).

The spelling of 12041531 in words is "twelve million, forty-one thousand, five hundred thirty-one".