32166361 has 4 divisors (see below), whose sum is σ = 32181300. Its totient is φ = 32151424.

The previous prime is 32166359. The next prime is 32166439. The reversal of 32166361 is 16366123.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4928400 + 27237961 = 2220^2 + 5219^2 .

It is a cyclic number.

It is not a de Polignac number, because 32166361 - 2¹ = 32166359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32166341) 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, 3556 + ... + 8773.

It is an arithmetic number, because the mean of its divisors is an integer number (8045325).

Almost surely, 2^32166361 is an apocalyptic number.

It is an amenable number.

32166361 is a deficient number, since it is larger than the sum of its proper divisors (14939).

32166361 is a wasteful number, since it uses less digits than its factorization.

32166361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14938.

The product of its digits is 3888, while the sum is 28.

The square root of 32166361 is about 5671.5395617063. The cubic root of 32166361 is about 318.0294297882.

The spelling of 32166361 in words is "thirty-two million, one hundred sixty-six thousand, three hundred sixty-one".