18064955 has 4 divisors (see below), whose sum is σ = 21677952. Its totient is φ = 14451960.

The previous prime is 18064903. The next prime is 18064973. The reversal of 18064955 is 55946081.

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

It is not a de Polignac number, because 18064955 - 2⁸ = 18064699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1806491 + ... + 1806500.

It is an arithmetic number, because the mean of its divisors is an integer number (5419488).

Almost surely, 2^18064955 is an apocalyptic number.

18064955 is a deficient number, since it is larger than the sum of its proper divisors (3612997).

18064955 is an equidigital number, since it uses as much as digits as its factorization.

18064955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612996.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 18064955 is about 4250.2888137161. The cubic root of 18064955 is about 262.3890022021.

The spelling of 18064955 in words is "eighteen million, sixty-four thousand, nine hundred fifty-five".