45436181 has 16 divisors (see below), whose sum is σ = 53424000. Its totient is φ = 38624544.

The previous prime is 45436177. The next prime is 45436199. The reversal of 45436181 is 18163454.

45436181 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 45436181 - 2² = 45436177 is a prime.

It is a super-2 number, since 2×45436181² = 4128893087729522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45436141) 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 15 ways as a sum of consecutive naturals, for example, 47201 + ... + 48153.

It is an arithmetic number, because the mean of its divisors is an integer number (3339000).

Almost surely, 2^45436181 is an apocalyptic number.

It is an amenable number.

45436181 is a deficient number, since it is larger than the sum of its proper divisors (7987819).

45436181 is an equidigital number, since it uses as much as digits as its factorization.

45436181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1099 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 45436181 is about 6740.6365426419. The cubic root of 45436181 is about 356.8348589021.

The spelling of 45436181 in words is "forty-five million, four hundred thirty-six thousand, one hundred eighty-one".