18029161 has 8 divisors (see below), whose sum is σ = 18403200. Its totient is φ = 17657520.

The previous prime is 18029159. The next prime is 18029173. The reversal of 18029161 is 16192081.

It is a happy number.

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

It is not a de Polignac number, because 18029161 - 2¹ = 18029159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18029111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25075 + ... + 25783.

It is an arithmetic number, because the mean of its divisors is an integer number (2300400).

Almost surely, 2^18029161 is an apocalyptic number.

It is an amenable number.

18029161 is a deficient number, since it is larger than the sum of its proper divisors (374039).

18029161 is an equidigital number, since it uses as much as digits as its factorization.

18029161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 18029161 is about 4246.0759531596. The cubic root of 18029161 is about 262.2155879521.

The spelling of 18029161 in words is "eighteen million, twenty-nine thousand, one hundred sixty-one".