45449749 has 2 divisors, whose sum is σ = 45449750. Its totient is φ = 45449748.

The previous prime is 45449743. The next prime is 45449797. The reversal of 45449749 is 94794454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35164900 + 10284849 = 5930^2 + 3207^2 .

It is a cyclic number.

It is not a de Polignac number, because 45449749 - 2¹⁵ = 45416981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45449699 and 45449708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45449743) 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, 22724874 + 22724875.

It is an arithmetic number, because the mean of its divisors is an integer number (22724875).

Almost surely, 2^45449749 is an apocalyptic number.

It is an amenable number.

45449749 is a deficient number, since it is larger than the sum of its proper divisors (1).

45449749 is an equidigital number, since it uses as much as digits as its factorization.

45449749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 45449749 is about 6741.6429006586. The cubic root of 45449749 is about 356.8703743101.

The spelling of 45449749 in words is "forty-five million, four hundred forty-nine thousand, seven hundred forty-nine".