45425309 has 6 divisors (see below), whose sum is σ = 48254874. Its totient is φ = 42752960.

The previous prime is 45425287. The next prime is 45425321. The reversal of 45425309 is 90352454.

It is a happy number.

45425309 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 3 ways, for example, as 31956409 + 13468900 = 5653^2 + 3670^2 .

It is not a de Polignac number, because 45425309 - 2¹² = 45421213 is a prime.

It is a super-3 number, since 3×45425309³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45428309) 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, 78302 + ... + 78879.

It is an arithmetic number, because the mean of its divisors is an integer number (8042479).

Almost surely, 2^45425309 is an apocalyptic number.

It is an amenable number.

45425309 is a deficient number, since it is larger than the sum of its proper divisors (2829565).

45425309 is a wasteful number, since it uses less digits than its factorization.

45425309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157215 (or 157198 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 45425309 is about 6739.8300423675. The cubic root of 45425309 is about 356.8063954032.

The spelling of 45425309 in words is "forty-five million, four hundred twenty-five thousand, three hundred nine".