45099709 has 4 divisors (see below), whose sum is σ = 45167004. Its totient is φ = 45032416.

The previous prime is 45099701. The next prime is 45099739. The reversal of 45099709 is 90799054.

45099709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90799054 = 2 ⋅45399527.

It can be written as a sum of positive squares in 2 ways, for example, as 21187609 + 23912100 = 4603^2 + 4890^2 .

It is a cyclic number.

It is not a de Polignac number, because 45099709 - 2³ = 45099701 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 (45099701) 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 3 ways as a sum of consecutive naturals, for example, 32632 + ... + 33985.

It is an arithmetic number, because the mean of its divisors is an integer number (11291751).

Almost surely, 2^45099709 is an apocalyptic number.

It is an amenable number.

45099709 is a deficient number, since it is larger than the sum of its proper divisors (67295).

45099709 is an equidigital number, since it uses as much as digits as its factorization.

45099709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67294.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 45099709 is about 6715.6316903177. The cubic root of 45099709 is about 355.9518435261.

The spelling of 45099709 in words is "forty-five million, ninety-nine thousand, seven hundred nine".