45011309 has 16 divisors (see below), whose sum is σ = 52396032. Its totient is φ = 37873008.

The previous prime is 45011303. The next prime is 45011321. The reversal of 45011309 is 90311054.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45011309 - 2⁴ = 45011293 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 (45011303) 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, 117332 + ... + 117714.

It is an arithmetic number, because the mean of its divisors is an integer number (3274752).

Almost surely, 2^45011309 is an apocalyptic number.

It is an amenable number.

45011309 is a deficient number, since it is larger than the sum of its proper divisors (7384723).

45011309 is a wasteful number, since it uses less digits than its factorization.

45011309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 45011309 is about 6709.0468026390. The cubic root of 45011309 is about 355.7191241803.

The spelling of 45011309 in words is "forty-five million, eleven thousand, three hundred nine".