45215 has 4 divisors (see below), whose sum is σ = 54264. Its totient is φ = 36168.

The previous prime is 45197. The next prime is 45233. The reversal of 45215 is 51254.

45215 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (45197) and next prime (45233).

It is a cyclic number.

It is not a de Polignac number, because 45215 - 2⁸ = 44959 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 45193 and 45202.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 45215.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4517 + ... + 4526.

It is an arithmetic number, because the mean of its divisors is an integer number (13566).

2⁴⁵²¹⁵ is an apocalyptic number.

45215 is a deficient number, since it is larger than the sum of its proper divisors (9049).

45215 is an equidigital number, since it uses as much as digits as its factorization.

45215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9048.

The product of its digits is 200, while the sum is 17.

The square root of 45215 is about 212.6381903610. The cubic root of 45215 is about 35.6254898876.

Adding to 45215 its reverse (51254), we get a palindrome (96469).

The spelling of 45215 in words is "forty-five thousand, two hundred fifteen".