18832161 has 8 divisors (see below), whose sum is σ = 25722144. Its totient is φ = 12248480.

The previous prime is 18832129. The next prime is 18832171. The reversal of 18832161 is 16123881.

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 18832161 - 2⁵ = 18832129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18832171) 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, 76431 + ... + 76676.

It is an arithmetic number, because the mean of its divisors is an integer number (3215268).

Almost surely, 2^18832161 is an apocalyptic number.

It is an amenable number.

18832161 is a deficient number, since it is larger than the sum of its proper divisors (6889983).

18832161 is a wasteful number, since it uses less digits than its factorization.

18832161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153151.

The product of its digits is 2304, while the sum is 30.

The square root of 18832161 is about 4339.6037837572. The cubic root of 18832161 is about 266.0521172872.

The spelling of 18832161 in words is "eighteen million, eight hundred thirty-two thousand, one hundred sixty-one".