32645161 has 4 divisors (see below), whose sum is σ = 33105024. Its totient is φ = 32185300.

The previous prime is 32645159. The next prime is 32645177. The reversal of 32645161 is 16154623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16154623 = 103 ⋅156841.

It is a cyclic number.

It is not a de Polignac number, because 32645161 - 2¹ = 32645159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32645101) 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, 229825 + ... + 229966.

It is an arithmetic number, because the mean of its divisors is an integer number (8276256).

Almost surely, 2^32645161 is an apocalyptic number.

It is an amenable number.

32645161 is a deficient number, since it is larger than the sum of its proper divisors (459863).

32645161 is an equidigital number, since it uses as much as digits as its factorization.

32645161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459862.

The product of its digits is 4320, while the sum is 28.

The square root of 32645161 is about 5713.5944028256. The cubic root of 32645161 is about 319.5996327539.

Adding to 32645161 its reverse (16154623), we get a palindrome (48799784).

The spelling of 32645161 in words is "thirty-two million, six hundred forty-five thousand, one hundred sixty-one".