45116993 has 4 divisors (see below), whose sum is σ = 45735108. Its totient is φ = 44498880.

The previous prime is 45116989. The next prime is 45117013. The reversal of 45116993 is 39961154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23892544 + 21224449 = 4888^2 + 4607^2 .

It is a cyclic number.

It is not a de Polignac number, because 45116993 - 2² = 45116989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45116923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308948 + ... + 309093.

It is an arithmetic number, because the mean of its divisors is an integer number (11433777).

Almost surely, 2^45116993 is an apocalyptic number.

It is an amenable number.

45116993 is a deficient number, since it is larger than the sum of its proper divisors (618115).

45116993 is an equidigital number, since it uses as much as digits as its factorization.

45116993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618114.

The product of its digits is 29160, while the sum is 38.

The square root of 45116993 is about 6716.9184154640. The cubic root of 45116993 is about 355.9973093472.

The spelling of 45116993 in words is "forty-five million, one hundred sixteen thousand, nine hundred ninety-three".