45026581 has 2 divisors, whose sum is σ = 45026582. Its totient is φ = 45026580.

The previous prime is 45026503. The next prime is 45026621. The reversal of 45026581 is 18562054.

45026581 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., 27133681 + 17892900 = 5209^2 + 4230^2 .

It is a cyclic number.

It is not a de Polignac number, because 45026581 - 2¹¹ = 45024533 is a prime.

It is a super-2 number, since 2×45026581² = 4054785993099122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45026981) 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, 22513290 + 22513291.

It is an arithmetic number, because the mean of its divisors is an integer number (22513291).

Almost surely, 2^45026581 is an apocalyptic number.

It is an amenable number.

45026581 is a deficient number, since it is larger than the sum of its proper divisors (1).

45026581 is an equidigital number, since it uses as much as digits as its factorization.

45026581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 45026581 is about 6710.1848707767. The cubic root of 45026581 is about 355.7593505759.

The spelling of 45026581 in words is "forty-five million, twenty-six thousand, five hundred eighty-one".