18479545 has 8 divisors (see below), whose sum is σ = 25343424. Its totient is φ = 12671664.

The previous prime is 18479537. The next prime is 18479569. The reversal of 18479545 is 54597481.

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

It is a cyclic number.

It is not a de Polignac number, because 18479545 - 2³ = 18479537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263959 + ... + 264028.

It is an arithmetic number, because the mean of its divisors is an integer number (3167928).

Almost surely, 2^18479545 is an apocalyptic number.

It is an amenable number.

18479545 is a deficient number, since it is larger than the sum of its proper divisors (6863879).

18479545 is an equidigital number, since it uses as much as digits as its factorization.

18479545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527999.

The product of its digits is 201600, while the sum is 43.

The square root of 18479545 is about 4298.7841304257. The cubic root of 18479545 is about 264.3811118268.

The spelling of 18479545 in words is "eighteen million, four hundred seventy-nine thousand, five hundred forty-five".