45181863 has 24 divisors (see below), whose sum is σ = 67173392. Its totient is φ = 29248128.

The previous prime is 45181859. The next prime is 45181883. The reversal of 45181863 is 36818154.

It is not a de Polignac number, because 45181863 - 2² = 45181859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45181813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120945 + ... + 121317.

Almost surely, 2^45181863 is an apocalyptic number.

45181863 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

45181863 is a deficient number, since it is larger than the sum of its proper divisors (21991529).

45181863 is a wasteful number, since it uses less digits than its factorization.

45181863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 732 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 45181863 is about 6721.7455322260. The cubic root of 45181863 is about 356.1678473541.

The spelling of 45181863 in words is "forty-five million, one hundred eighty-one thousand, eight hundred sixty-three".