2549429 has 2 divisors, whose sum is σ = 2549430.
Its totient is φ = 2549428.
The previous prime is 2549423. The next prime is 2549431. The reversal of 2549429 is 9249452.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2486929 + 62500 = 1577^2 + 250^2
It is a cyclic number.
It is not a de Polignac number, because 2549429 - 220 = 1500853 is a prime.
Together with 2549431, it forms a pair of twin primes.
It is a Chen prime.
It is a plaindrome in base 15.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2549423) 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, 1274714 + 1274715.
It is an arithmetic number, because the mean of its divisors is an integer number (1274715).
22549429 is an apocalyptic number.
It is an amenable number.
2549429 is a deficient number, since it is larger than the sum of its proper divisors (1).
2549429 is an equidigital number, since it uses as much as digits as its factorization.
2549429 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 25920, while the sum is 35.
The square root of 2549429 is about 1596.6931452223.
The cubic root of 2549429 is about 136.6095226761.
The spelling of 2549429 in words is "two million, five hundred forty-nine thousand, four hundred twenty-nine".