45171709 has 16 divisors (see below), whose sum is σ = 51863616. Its totient is φ = 38966400.

The previous prime is 45171689. The next prime is 45171733. The reversal of 45171709 is 90717154.

It is not a de Polignac number, because 45171709 - 2¹⁷ = 45040637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45171769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15334 + ... + 18040.

It is an arithmetic number, because the mean of its divisors is an integer number (3241476).

Almost surely, 2^45171709 is an apocalyptic number.

It is an amenable number.

45171709 is a deficient number, since it is larger than the sum of its proper divisors (6691907).

45171709 is a wasteful number, since it uses less digits than its factorization.

45171709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 45171709 is about 6720.9901800256. The cubic root of 45171709 is about 356.1411640861.

It can be divided in two parts, 4517 and 1709, that added together give a palindrome (6226).

The spelling of 45171709 in words is "forty-five million, one hundred seventy-one thousand, seven hundred nine".