45481845 has 16 divisors (see below), whose sum is σ = 73523520. Its totient is φ = 24006144.

The previous prime is 45481841. The next prime is 45481859. The reversal of 45481845 is 54818454.

It is not a de Polignac number, because 45481845 - 2² = 45481841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45481841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14175 + ... + 17084.

It is an arithmetic number, because the mean of its divisors is an integer number (4595220).

Almost surely, 2^45481845 is an apocalyptic number.

It is an amenable number.

45481845 is a deficient number, since it is larger than the sum of its proper divisors (28041675).

45481845 is a wasteful number, since it uses less digits than its factorization.

45481845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31364.

The product of its digits is 102400, while the sum is 39.

The square root of 45481845 is about 6744.0229092138. The cubic root of 45481845 is about 356.9543602257.

The spelling of 45481845 in words is "forty-five million, four hundred eighty-one thousand, eight hundred forty-five".