3549427249 has 2 divisors, whose sum is σ = 3549427250. Its totient is φ = 3549427248.

The previous prime is 3549427241. The next prime is 3549427253. The reversal of 3549427249 is 9427249453.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2147673649 + 1401753600 = 46343^2 + 37440^2 .

It is a cyclic number.

It is not a de Polignac number, because 3549427249 - 2³ = 3549427241 is a prime.

It is not a weakly prime, because it can be changed into another prime (3549427241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774713624 + 1774713625.

It is an arithmetic number, because the mean of its divisors is an integer number (1774713625).

Almost surely, 2^3549427249 is an apocalyptic number.

It is an amenable number.

3549427249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3549427249 is an equidigital number, since it uses as much as digits as its factorization.

3549427249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 49.

The square root of 3549427249 is about 59577.0698255629. The cubic root of 3549427249 is about 1525.4082574788.

The spelling of 3549427249 in words is "three billion, five hundred forty-nine million, four hundred twenty-seven thousand, two hundred forty-nine".