18164098 has 4 divisors (see below), whose sum is σ = 27246150. Its totient is φ = 9082048.

The previous prime is 18164093. The next prime is 18164101. The reversal of 18164098 is 89046181.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10284849 + 7879249 = 3207^2 + 2807^2 .

It is not an unprimeable number, because it can be changed into a prime (18164093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4541023 + ... + 4541026.

Almost surely, 2^18164098 is an apocalyptic number.

18164098 is a deficient number, since it is larger than the sum of its proper divisors (9082052).

18164098 is an equidigital number, since it uses as much as digits as its factorization.

18164098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9082051.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 18164098 is about 4261.9359450841. The cubic root of 18164098 is about 262.8681359330.

The spelling of 18164098 in words is "eighteen million, one hundred sixty-four thousand, ninety-eight".