12532181 has 8 divisors (see below), whose sum is σ = 12749184. Its totient is φ = 12317200.

The previous prime is 12532151. The next prime is 12532189. The reversal of 12532181 is 18123521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12532181 is a prime.

It is a super-2 number, since 2×12532181² = 314111121233522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12532189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16496 + ... + 17238.

It is an arithmetic number, because the mean of its divisors is an integer number (1593648).

Almost surely, 2^12532181 is an apocalyptic number.

It is an amenable number.

12532181 is a deficient number, since it is larger than the sum of its proper divisors (217003).

12532181 is a wasteful number, since it uses less digits than its factorization.

12532181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its digits is 480, while the sum is 23.

The square root of 12532181 is about 3540.0820611958. The cubic root of 12532181 is about 232.2784323061.

The spelling of 12532181 in words is "twelve million, five hundred thirty-two thousand, one hundred eighty-one".