32118481 has 4 divisors (see below), whose sum is σ = 32285092. Its totient is φ = 31951872.

The previous prime is 32118473. The next prime is 32118487. The reversal of 32118481 is 18481123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18481123 = 3533 ⋅5231.

It can be written as a sum of positive squares in 2 ways, for example, as 3549456 + 28569025 = 1884^2 + 5345^2 .

It is a cyclic number.

It is not a de Polignac number, because 32118481 - 2³ = 32118473 is a prime.

It is a super-2 number, since 2×32118481² = 2063193643494722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32118487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83016 + ... + 83401.

It is an arithmetic number, because the mean of its divisors is an integer number (8071273).

Almost surely, 2^32118481 is an apocalyptic number.

It is an amenable number.

32118481 is a deficient number, since it is larger than the sum of its proper divisors (166611).

32118481 is a wasteful number, since it uses less digits than its factorization.

32118481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166610.

The product of its digits is 1536, while the sum is 28.

The square root of 32118481 is about 5667.3169136726. The cubic root of 32118481 is about 317.8715546023.

The spelling of 32118481 in words is "thirty-two million, one hundred eighteen thousand, four hundred eighty-one".