45382281 has 12 divisors (see below), whose sum is σ = 70389072. Its totient is φ = 25932648.

The previous prime is 45382273. The next prime is 45382301. The reversal of 45382281 is 18228354.

45382281 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 45382281 - 2³ = 45382273 is a prime.

It is a super-2 number, since 2×45382281² = 4119102857525922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45380281) 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, 154215 + ... + 154508.

It is an arithmetic number, because the mean of its divisors is an integer number (5865756).

Almost surely, 2^45382281 is an apocalyptic number.

It is an amenable number.

45382281 is a deficient number, since it is larger than the sum of its proper divisors (25006791).

45382281 is a wasteful number, since it uses less digits than its factorization.

45382281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308740 (or 308733 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 45382281 is about 6736.6372174847. The cubic root of 45382281 is about 356.6937011369.

The spelling of 45382281 in words is "forty-five million, three hundred eighty-two thousand, two hundred eighty-one".