45018321 has 8 divisors (see below), whose sum is σ = 60360480. Its totient is φ = 29844192.

The previous prime is 45018319. The next prime is 45018349. The reversal of 45018321 is 12381054.

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

It is not a de Polignac number, because 45018321 - 2¹ = 45018319 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45018291 and 45018300.

It is not an unprimeable number, because it can be changed into a prime (45018301) 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, 41380 + ... + 42453.

It is an arithmetic number, because the mean of its divisors is an integer number (7545060).

Almost surely, 2^45018321 is an apocalyptic number.

It is an amenable number.

45018321 is a deficient number, since it is larger than the sum of its proper divisors (15342159).

45018321 is a wasteful number, since it uses less digits than its factorization.

45018321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84015.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 45018321 is about 6709.5693602496. The cubic root of 45018321 is about 355.7375948938.

Adding to 45018321 its reverse (12381054), we get a palindrome (57399375).

The spelling of 45018321 in words is "forty-five million, eighteen thousand, three hundred twenty-one".