45015 has 8 divisors (see below), whose sum is σ = 72048. Its totient is φ = 24000.

The previous prime is 45013. The next prime is 45053. The reversal of 45015 is 51054.

45015 is nontrivially palindromic in base 11.

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

It is not a de Polignac number, because 45015 - 2¹ = 45013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 3001 = 45015 / (4 + 5 + 0 + 1 + 5).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 44985 and 45003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45013) 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, 1486 + ... + 1515.

It is an arithmetic number, because the mean of its divisors is an integer number (9006).

2⁴⁵⁰¹⁵ is an apocalyptic number.

45015 is a deficient number, since it is larger than the sum of its proper divisors (27033).

45015 is a wasteful number, since it uses less digits than its factorization.

45015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 45015 is about 212.1673867492. The cubic root of 45015 is about 35.5728847095.

Multiplying 45015 by its product of nonzero digits (100), we get a triangular number (4501500 = T₃₀₀₀).

Adding to 45015 its reverse (51054), we get a palindrome (96069).

It can be divided in two parts, 450 and 15, that added together give a triangular number (465 = T₃₀).

The spelling of 45015 in words is "forty-five thousand, fifteen".