45181139 has 8 divisors (see below), whose sum is σ = 46652928. Its totient is φ = 43727040.

The previous prime is 45181111. The next prime is 45181151. The reversal of 45181139 is 93118154.

45181139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45181139 - 2¹² = 45177043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45181109) 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 7 ways as a sum of consecutive naturals, for example, 869 + ... + 9545.

It is an arithmetic number, because the mean of its divisors is an integer number (5831616).

Almost surely, 2^45181139 is an apocalyptic number.

45181139 is a deficient number, since it is larger than the sum of its proper divisors (1471789).

45181139 is a wasteful number, since it uses less digits than its factorization.

45181139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845.

The product of its digits is 4320, while the sum is 32.

The square root of 45181139 is about 6721.6916769516. The cubic root of 45181139 is about 356.1659449174.

The spelling of 45181139 in words is "forty-five million, one hundred eighty-one thousand, one hundred thirty-nine".