45915321 has 8 divisors (see below), whose sum is σ = 62059360. Its totient is φ = 30190752.

The previous prime is 45915319. The next prime is 45915361. The reversal of 45915321 is 12351954.

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

It is not a de Polignac number, because 45915321 - 2¹ = 45915319 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45915361) 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, 104611 + ... + 105048.

It is an arithmetic number, because the mean of its divisors is an integer number (7757420).

Almost surely, 2^45915321 is an apocalyptic number.

It is an amenable number.

45915321 is a deficient number, since it is larger than the sum of its proper divisors (16144039).

45915321 is a wasteful number, since it uses less digits than its factorization.

45915321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209735.

The product of its digits is 5400, while the sum is 30.

The square root of 45915321 is about 6776.0844888475. The cubic root of 45915321 is about 358.0847905234.

The spelling of 45915321 in words is "forty-five million, nine hundred fifteen thousand, three hundred twenty-one".