45440515 has 4 divisors (see below), whose sum is σ = 54528624. Its totient is φ = 36352408.

The previous prime is 45440503. The next prime is 45440531. The reversal of 45440515 is 51504454.

45440515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 45440515 - 2¹³ = 45432323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4544047 + ... + 4544056.

It is an arithmetic number, because the mean of its divisors is an integer number (13632156).

Almost surely, 2^45440515 is an apocalyptic number.

45440515 is a deficient number, since it is larger than the sum of its proper divisors (9088109).

45440515 is an equidigital number, since it uses as much as digits as its factorization.

45440515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088108.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 45440515 is about 6740.9580179675. The cubic root of 45440515 is about 356.8462042886.

Adding to 45440515 its reverse (51504454), we get a palindrome (96944969).

The spelling of 45440515 in words is "forty-five million, four hundred forty thousand, five hundred fifteen".