45043787 has 4 divisors (see below), whose sum is σ = 45057360. Its totient is φ = 45030216.

The previous prime is 45043783. The next prime is 45043807. The reversal of 45043787 is 78734054.

45043787 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45043787 - 2² = 45043783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45043787.

It is not an unprimeable number, because it can be changed into a prime (45043783) 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 3 ways as a sum of consecutive naturals, for example, 1889 + ... + 9677.

It is an arithmetic number, because the mean of its divisors is an integer number (11264340).

Almost surely, 2^45043787 is an apocalyptic number.

45043787 is a deficient number, since it is larger than the sum of its proper divisors (13573).

45043787 is an equidigital number, since it uses as much as digits as its factorization.

45043787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13572.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 45043787 is about 6711.4668292408. The cubic root of 45043787 is about 355.8046602257.

The spelling of 45043787 in words is "forty-five million, forty-three thousand, seven hundred eighty-seven".