45342749 has 2 divisors, whose sum is σ = 45342750. Its totient is φ = 45342748.

The previous prime is 45342727. The next prime is 45342751. The reversal of 45342749 is 94724354.

45342749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34987225 + 10355524 = 5915^2 + 3218^2 .

It is a cyclic number.

It is not a de Polignac number, because 45342749 - 2²⁴ = 28565533 is a prime.

Together with 45342751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45342779) 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, 22671374 + 22671375.

It is an arithmetic number, because the mean of its divisors is an integer number (22671375).

Almost surely, 2^45342749 is an apocalyptic number.

It is an amenable number.

45342749 is a deficient number, since it is larger than the sum of its proper divisors (1).

45342749 is an equidigital number, since it uses as much as digits as its factorization.

45342749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 38.

The square root of 45342749 is about 6733.7024733797. The cubic root of 45342749 is about 356.5901004113.

The spelling of 45342749 in words is "forty-five million, three hundred forty-two thousand, seven hundred forty-nine".