45882781 has 4 divisors (see below), whose sum is σ = 52437472. Its totient is φ = 39328092.

The previous prime is 45882773. The next prime is 45882791. The reversal of 45882781 is 18728854.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45882781 - 2³ = 45882773 is a prime.

It is a super-2 number, since 2×45882781² = 4210459184587922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45882791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3277335 + ... + 3277348.

It is an arithmetic number, because the mean of its divisors is an integer number (13109368).

Almost surely, 2^45882781 is an apocalyptic number.

It is an amenable number.

45882781 is a deficient number, since it is larger than the sum of its proper divisors (6554691).

45882781 is an equidigital number, since it uses as much as digits as its factorization.

45882781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6554690.

The product of its digits is 143360, while the sum is 43.

The square root of 45882781 is about 6773.6829716189. The cubic root of 45882781 is about 358.0001794575. Note that the first 3 decimals are identical.

The spelling of 45882781 in words is "forty-five million, eight hundred eighty-two thousand, seven hundred eighty-one".