45283581 has 24 divisors (see below), whose sum is σ = 74954880. Its totient is φ = 25806816.

The previous prime is 45283561. The next prime is 45283613. The reversal of 45283581 is 18538254.

It is a happy number.

It is not a de Polignac number, because 45283581 - 2⁷ = 45283453 is a prime.

It is a super-2 number, since 2×45283581² = 4101205416367122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45283561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30975 + ... + 32403.

It is an arithmetic number, because the mean of its divisors is an integer number (3123120).

Almost surely, 2^45283581 is an apocalyptic number.

It is an amenable number.

45283581 is a deficient number, since it is larger than the sum of its proper divisors (29671299).

45283581 is a wasteful number, since it uses less digits than its factorization.

45283581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945 (or 1942 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 45283581 is about 6729.3076166869. The cubic root of 45283581 is about 356.4349274419.

The spelling of 45283581 in words is "forty-five million, two hundred eighty-three thousand, five hundred eighty-one".