9218545 has 8 divisors (see below), whose sum is σ = 12642624. Its totient is φ = 6321264.

The previous prime is 9218543. The next prime is 9218551. The reversal of 9218545 is 5458129.

9218545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9218545 - 2¹ = 9218543 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9218545.

It is not an unprimeable number, because it can be changed into a prime (9218543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131659 + ... + 131728.

It is an arithmetic number, because the mean of its divisors is an integer number (1580328).

Almost surely, 2^9218545 is an apocalyptic number.

It is an amenable number.

9218545 is a deficient number, since it is larger than the sum of its proper divisors (3424079).

9218545 is a wasteful number, since it uses less digits than its factorization.

9218545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263399.

The product of its digits is 14400, while the sum is 34.

The square root of 9218545 is about 3036.2056913193. The cubic root of 9218545 is about 209.6786089123.

The spelling of 9218545 in words is "nine million, two hundred eighteen thousand, five hundred forty-five".