18019126 has 8 divisors (see below), whose sum is σ = 27223560. Its totient is φ = 8944608.

The previous prime is 18019123. The next prime is 18019147. The reversal of 18019126 is 62191081.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 18019094 and 18019103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18019123) 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 3 ways as a sum of consecutive naturals, for example, 32131 + ... + 32686.

It is an arithmetic number, because the mean of its divisors is an integer number (3402945).

Almost surely, 2^18019126 is an apocalyptic number.

18019126 is a deficient number, since it is larger than the sum of its proper divisors (9204434).

18019126 is a wasteful number, since it uses less digits than its factorization.

18019126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64958.

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

The square root of 18019126 is about 4244.8941093978. The cubic root of 18019126 is about 262.1669293414.

It can be divided in two parts, 18019 and 126, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 18019126 in words is "eighteen million, nineteen thousand, one hundred twenty-six".