45171689 has 2 divisors, whose sum is σ = 45171690. Its totient is φ = 45171688.

The previous prime is 45171667. The next prime is 45171733. The reversal of 45171689 is 98617154.

45171689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28090000 + 17081689 = 5300^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 45171689 - 2¹² = 45167593 is a prime.

It is a super-2 number, since 2×45171689² = 4080962974225442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45176689) 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, 22585844 + 22585845.

It is an arithmetic number, because the mean of its divisors is an integer number (22585845).

Almost surely, 2^45171689 is an apocalyptic number.

It is an amenable number.

45171689 is a deficient number, since it is larger than the sum of its proper divisors (1).

45171689 is an equidigital number, since it uses as much as digits as its factorization.

45171689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 45171689 is about 6720.9886921494. The cubic root of 45171689 is about 356.1411115250.

The spelling of 45171689 in words is "forty-five million, one hundred seventy-one thousand, six hundred eighty-nine".