45045887 has 4 divisors (see below), whose sum is σ = 45297720. Its totient is φ = 44794056.

The previous prime is 45045859. The next prime is 45045893. The reversal of 45045887 is 78854054.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45045887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45045857) 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 3 ways as a sum of consecutive naturals, for example, 125648 + ... + 126005.

It is an arithmetic number, because the mean of its divisors is an integer number (11324430).

Almost surely, 2^45045887 is an apocalyptic number.

45045887 is a deficient number, since it is larger than the sum of its proper divisors (251833).

45045887 is a wasteful number, since it uses less digits than its factorization.

45045887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251832.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 45045887 is about 6711.6232760786. The cubic root of 45045887 is about 355.8101894987.

The spelling of 45045887 in words is "forty-five million, forty-five thousand, eight hundred eighty-seven".