32297161 has 8 divisors (see below), whose sum is σ = 36827784. Its totient is φ = 28058880.

The previous prime is 32297147. The next prime is 32297183. The reversal of 32297161 is 16179223.

It can be written as a sum of positive squares in 4 ways, for example, as 10497600 + 21799561 = 3240^2 + 4669^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 32297161 - 2⁷ = 32297033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32297191) 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 7 ways as a sum of consecutive naturals, for example, 72850 + ... + 73291.

It is an arithmetic number, because the mean of its divisors is an integer number (4603473).

Almost surely, 2^32297161 is an apocalyptic number.

It is an amenable number.

32297161 is a deficient number, since it is larger than the sum of its proper divisors (4530623).

32297161 is a wasteful number, since it uses less digits than its factorization.

32297161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146171.

The product of its digits is 4536, while the sum is 31.

The square root of 32297161 is about 5683.0591233947. The cubic root of 32297161 is about 318.4599208423.

The spelling of 32297161 in words is "thirty-two million, two hundred ninety-seven thousand, one hundred sixty-one".