18454965 has 8 divisors (see below), whose sum is σ = 29527968. Its totient is φ = 9842640.

The previous prime is 18454963. The next prime is 18454987. The reversal of 18454965 is 56945481.

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

It is not a de Polignac number, because 18454965 - 2¹ = 18454963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18454963) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 615151 + ... + 615180.

It is an arithmetic number, because the mean of its divisors is an integer number (3690996).

Almost surely, 2^18454965 is an apocalyptic number.

18454965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18454965 is a deficient number, since it is larger than the sum of its proper divisors (11073003).

18454965 is a wasteful number, since it uses less digits than its factorization.

18454965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230339.

The product of its digits is 172800, while the sum is 42.

The square root of 18454965 is about 4295.9242311754. The cubic root of 18454965 is about 264.2638403407.

The spelling of 18454965 in words is "eighteen million, four hundred fifty-four thousand, nine hundred sixty-five".