32181049 has 4 divisors (see below), whose sum is σ = 32213236. Its totient is φ = 32148864.

The previous prime is 32181047. The next prime is 32181053. The reversal of 32181049 is 94018123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94018123 = 97 ⋅969259.

It can be written as a sum of positive squares in 2 ways, for example, as 21455424 + 10725625 = 4632^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 32181049 - 2¹ = 32181047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32181043) 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, 14544 + ... + 16609.

It is an arithmetic number, because the mean of its divisors is an integer number (8053309).

Almost surely, 2^32181049 is an apocalyptic number.

It is an amenable number.

32181049 is a deficient number, since it is larger than the sum of its proper divisors (32187).

32181049 is a wasteful number, since it uses less digits than its factorization.

32181049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32186.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 32181049 is about 5672.8343004181. The cubic root of 32181049 is about 318.0778292683.

The spelling of 32181049 in words is "thirty-two million, one hundred eighty-one thousand, forty-nine".