9001448249 has 2 divisors, whose sum is σ = 9001448250.
Its totient is φ = 9001448248.
The previous prime is 9001448233. The next prime is 9001448251. The reversal of 9001448249 is 9428441009.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6210228025 + 2791220224 = 78805^2 + 52832^2
It is a cyclic number.
It is not a de Polignac number, because 9001448249 - 24 = 9001448233 is a prime.
Together with 9001448251, 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 (9001448749) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500724124 + 4500724125.
It is an arithmetic number, because the mean of its divisors is an integer number (4500724125).
Almost surely, 29001448249 is an apocalyptic number.
It is an amenable number.
9001448249 is a deficient number, since it is larger than the sum of its proper divisors (1).
9001448249 is an equidigital number, since it uses as much as digits as its factorization.
9001448249 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 82944, while the sum is 41.
The square root of 9001448249 is about 94875.9624404412.
The cubic root of 9001448249 is about 2080.1953903758.
The spelling of 9001448249 in words is "nine billion, one million, four hundred forty-eight thousand, two hundred forty-nine".