45088681 has 16 divisors (see below), whose sum is σ = 50944320. Its totient is φ = 39545280.

The previous prime is 45088661. The next prime is 45088721. The reversal of 45088681 is 18688054.

It is a cyclic number.

It is not a de Polignac number, because 45088681 - 2¹³ = 45080489 is a prime.

It is a super-2 number, since 2×45088681² = 4065978308639522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45088661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56175 + ... + 56971.

It is an arithmetic number, because the mean of its divisors is an integer number (3184020).

Almost surely, 2^45088681 is an apocalyptic number.

It is an amenable number.

45088681 is a deficient number, since it is larger than the sum of its proper divisors (5855639).

45088681 is a wasteful number, since it uses less digits than its factorization.

45088681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 45088681 is about 6714.8105706714. The cubic root of 45088681 is about 355.9228281361.

The spelling of 45088681 in words is "forty-five million, eighty-eight thousand, six hundred eighty-one".