18162029 has 4 divisors (see below), whose sum is σ = 18469920. Its totient is φ = 17854140.

The previous prime is 18162007. The next prime is 18162031. The reversal of 18162029 is 92026181.

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.

It is a cyclic number.

It is not a de Polignac number, because 18162029 - 2²⁴ = 1384813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18161992 and 18162010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18162049) 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 3 ways as a sum of consecutive naturals, for example, 153857 + ... + 153974.

It is an arithmetic number, because the mean of its divisors is an integer number (4617480).

Almost surely, 2^18162029 is an apocalyptic number.

It is an amenable number.

18162029 is a deficient number, since it is larger than the sum of its proper divisors (307891).

18162029 is an equidigital number, since it uses as much as digits as its factorization.

18162029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307890.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 18162029 is about 4261.6932081040. The cubic root of 18162029 is about 262.8581548002.

The spelling of 18162029 in words is "eighteen million, one hundred sixty-two thousand, twenty-nine".