45200709 has 6 divisors (see below), whose sum is σ = 65289926. Its totient is φ = 30133800.

The previous prime is 45200693. The next prime is 45200731. The reversal of 45200709 is 90700254.

45200709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32455809 + 12744900 = 5697^2 + 3570^2 .

It is not a de Polignac number, because 45200709 - 2⁴ = 45200693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45200509) 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 in 5 ways as a sum of consecutive naturals, for example, 2511142 + ... + 2511159.

Almost surely, 2^45200709 is an apocalyptic number.

It is an amenable number.

45200709 is a deficient number, since it is larger than the sum of its proper divisors (20089217).

45200709 is a wasteful number, since it uses less digits than its factorization.

45200709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022307 (or 5022304 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 45200709 is about 6723.1472540768. The cubic root of 45200709 is about 356.2173613681.

The spelling of 45200709 in words is "forty-five million, two hundred thousand, seven hundred nine".