18454065 has 16 divisors (see below), whose sum is σ = 33744768. Its totient is φ = 8436096.

The previous prime is 18454049. The next prime is 18454067. The reversal of 18454065 is 56045481.

It is not a de Polignac number, because 18454065 - 2⁴ = 18454049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18454067) 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 15 ways as a sum of consecutive naturals, for example, 87772 + ... + 87981.

It is an arithmetic number, because the mean of its divisors is an integer number (2109048).

Almost surely, 2^18454065 is an apocalyptic number.

18454065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18454065 is a deficient number, since it is larger than the sum of its proper divisors (15290703).

18454065 is a wasteful number, since it uses less digits than its factorization.

18454065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175768.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 18454065 is about 4295.8194794474. The cubic root of 18454065 is about 264.2595444538.

The spelling of 18454065 in words is "eighteen million, four hundred fifty-four thousand, sixty-five".