45540815 has 8 divisors (see below), whose sum is σ = 57525360. Its totient is φ = 34515072.

The previous prime is 45540811. The next prime is 45540823. The reversal of 45540815 is 51804554.

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

It is a cyclic number.

It is not a de Polignac number, because 45540815 - 2² = 45540811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45540811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239594 + ... + 239783.

It is an arithmetic number, because the mean of its divisors is an integer number (7190670).

Almost surely, 2^45540815 is an apocalyptic number.

45540815 is a deficient number, since it is larger than the sum of its proper divisors (11984545).

45540815 is a wasteful number, since it uses less digits than its factorization.

45540815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479401.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 45540815 is about 6748.3935125332. The cubic root of 45540815 is about 357.1085646693.

The spelling of 45540815 in words is "forty-five million, five hundred forty thousand, eight hundred fifteen".