45112513 has 2 divisors, whose sum is σ = 45112514. Its totient is φ = 45112512.

The previous prime is 45112511. The next prime is 45112519. The reversal of 45112513 is 31521154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32524209 + 12588304 = 5703^2 + 3548^2 .

It is a cyclic number.

It is not a de Polignac number, because 45112513 - 2¹ = 45112511 is a prime.

Together with 45112511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45112511) 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 as a sum of consecutive naturals, namely, 22556256 + 22556257.

It is an arithmetic number, because the mean of its divisors is an integer number (22556257).

Almost surely, 2^45112513 is an apocalyptic number.

It is an amenable number.

45112513 is a deficient number, since it is larger than the sum of its proper divisors (1).

45112513 is an equidigital number, since it uses as much as digits as its factorization.

45112513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 22.

The square root of 45112513 is about 6716.5849209252. The cubic root of 45112513 is about 355.9855257550.

Adding to 45112513 its reverse (31521154), we get a palindrome (76633667).

The spelling of 45112513 in words is "forty-five million, one hundred twelve thousand, five hundred thirteen".