45135989 has 2 divisors, whose sum is σ = 45135990. Its totient is φ = 45135988.

The previous prime is 45135983. The next prime is 45135997. The reversal of 45135989 is 98953154.

It is a happy number.

45135989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27352900 + 17783089 = 5230^2 + 4217^2 .

It is a cyclic number.

It is not a de Polignac number, because 45135989 - 2¹² = 45131893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45135983) 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 as a sum of consecutive naturals, namely, 22567994 + 22567995.

It is an arithmetic number, because the mean of its divisors is an integer number (22567995).

Almost surely, 2^45135989 is an apocalyptic number.

It is an amenable number.

45135989 is a deficient number, since it is larger than the sum of its proper divisors (1).

45135989 is an equidigital number, since it uses as much as digits as its factorization.

45135989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The square root of 45135989 is about 6718.3323079467. The cubic root of 45135989 is about 356.0472652179.

The spelling of 45135989 in words is "forty-five million, one hundred thirty-five thousand, nine hundred eighty-nine".