45181361 has 12 divisors (see below), whose sum is σ = 47566848. Its totient is φ = 42910824.

The previous prime is 45181351. The next prime is 45181363. The reversal of 45181361 is 16318154.

45181361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45181361 - 2²² = 40987057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45181363) 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 11 ways as a sum of consecutive naturals, for example, 117776 + ... + 118158.

It is an arithmetic number, because the mean of its divisors is an integer number (3963904).

Almost surely, 2^45181361 is an apocalyptic number.

It is an amenable number.

45181361 is a deficient number, since it is larger than the sum of its proper divisors (2385487).

45181361 is a wasteful number, since it uses less digits than its factorization.

45181361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 629 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 45181361 is about 6721.7081906313. The cubic root of 45181361 is about 356.1665282634.

The spelling of 45181361 in words is "forty-five million, one hundred eighty-one thousand, three hundred sixty-one".