45772815 has 16 divisors (see below), whose sum is σ = 79894656. Its totient is φ = 22192800.

The previous prime is 45772801. The next prime is 45772819. The reversal of 45772815 is 51827754.

45772815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45772815 - 2⁴ = 45772799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45772819) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 138541 + ... + 138870.

It is an arithmetic number, because the mean of its divisors is an integer number (4993416).

Almost surely, 2^45772815 is an apocalyptic number.

45772815 is a deficient number, since it is larger than the sum of its proper divisors (34121841).

45772815 is a wasteful number, since it uses less digits than its factorization.

45772815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277430.

The product of its digits is 78400, while the sum is 39.

The square root of 45772815 is about 6765.5609523527. The cubic root of 45772815 is about 357.7139476044.

The spelling of 45772815 in words is "forty-five million, seven hundred seventy-two thousand, eight hundred fifteen".