990252269 has 2 divisors, whose sum is σ = 990252270.
Its totient is φ = 990252268.
The previous prime is 990252253. The next prime is 990252271. The reversal of 990252269 is 962252099.
990252269 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., 945870025 + 44382244 = 30755^2 + 6662^2
It is a cyclic number.
It is not a de Polignac number, because 990252269 - 24 = 990252253 is a prime.
It is a super-2 number, since 2×9902522692 = 1961199112519296722, which contains 22 as substring.
Together with 990252271, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (990252229) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495126134 + 495126135.
It is an arithmetic number, because the mean of its divisors is an integer number (495126135).
Almost surely, 2990252269 is an apocalyptic number.
It is an amenable number.
990252269 is a deficient number, since it is larger than the sum of its proper divisors (1).
990252269 is an equidigital number, since it uses as much as digits as its factorization.
990252269 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 174960, while the sum is 44.
The square root of 990252269 is about 31468.2740073236.
The cubic root of 990252269 is about 996.7401412011.
The spelling of 990252269 in words is "nine hundred ninety million, two hundred fifty-two thousand, two hundred sixty-nine".