45045181 has 8 divisors (see below), whose sum is σ = 47861280. Its totient is φ = 42273648.

The previous prime is 45045163. The next prime is 45045193. The reversal of 45045181 is 18154054.

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 45045181 - 2⁹ = 45044669 is a prime.

It is a super-2 number, since 2×45045181² = 4058136662645522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45045131) 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, 9046 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (5982660).

Almost surely, 2^45045181 is an apocalyptic number.

It is an amenable number.

45045181 is a deficient number, since it is larger than the sum of its proper divisors (2816099).

45045181 is a wasteful number, since it uses less digits than its factorization.

45045181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22283.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 45045181 is about 6711.5706805486. The cubic root of 45045181 is about 355.8083306289.

The spelling of 45045181 in words is "forty-five million, forty-five thousand, one hundred eighty-one".