18484137 has 12 divisors (see below), whose sum is σ = 30513600. Its totient is φ = 10562328.

The previous prime is 18484133. The next prime is 18484171. The reversal of 18484137 is 73148481.

It is not a de Polignac number, because 18484137 - 2² = 18484133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18484133) 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 11 ways as a sum of consecutive naturals, for example, 146637 + ... + 146762.

It is an arithmetic number, because the mean of its divisors is an integer number (2542800).

Almost surely, 2^18484137 is an apocalyptic number.

It is an amenable number.

18484137 is a deficient number, since it is larger than the sum of its proper divisors (12029463).

18484137 is a wasteful number, since it uses less digits than its factorization.

18484137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293412 (or 293409 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 18484137 is about 4299.3182017618. The cubic root of 18484137 is about 264.4030087858.

The spelling of 18484137 in words is "eighteen million, four hundred eighty-four thousand, one hundred thirty-seven".