45307081 has 2 divisors, whose sum is σ = 45307082. Its totient is φ = 45307080.

The previous prime is 45307021. The next prime is 45307111. The reversal of 45307081 is 18070354.

45307081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25593481 + 19713600 = 5059^2 + 4440^2 .

It is a cyclic number.

It is not a de Polignac number, because 45307081 - 2⁷ = 45306953 is a prime.

It is a super-2 number, since 2×45307081² = 4105463177481122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45307021) 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 as a sum of consecutive naturals, namely, 22653540 + 22653541.

It is an arithmetic number, because the mean of its divisors is an integer number (22653541).

Almost surely, 2^45307081 is an apocalyptic number.

It is an amenable number.

45307081 is a deficient number, since it is larger than the sum of its proper divisors (1).

45307081 is an equidigital number, since it uses as much as digits as its factorization.

45307081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 45307081 is about 6731.0534836681. The cubic root of 45307081 is about 356.4965743058.

It can be divided in two parts, 4530 and 7081, that added together give a palindrome (11611).

The spelling of 45307081 in words is "forty-five million, three hundred seven thousand, eighty-one".