45188849 has 2 divisors, whose sum is σ = 45188850. Its totient is φ = 45188848.

The previous prime is 45188837. The next prime is 45188851. The reversal of 45188849 is 94888154.

It is a happy number.

45188849 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., 28729600 + 16459249 = 5360^2 + 4057^2 .

It is a cyclic number.

It is not a de Polignac number, because 45188849 - 2²⁰ = 44140273 is a prime.

Together with 45188851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45188879) 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, 22594424 + 22594425.

It is an arithmetic number, because the mean of its divisors is an integer number (22594425).

Almost surely, 2^45188849 is an apocalyptic number.

It is an amenable number.

45188849 is a deficient number, since it is larger than the sum of its proper divisors (1).

45188849 is an equidigital number, since it uses as much as digits as its factorization.

45188849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 47.

The square root of 45188849 is about 6722.2651688252. The cubic root of 45188849 is about 356.1862032472.

The spelling of 45188849 in words is "forty-five million, one hundred eighty-eight thousand, eight hundred forty-nine".