1123000849 has 2 divisors, whose sum is σ = 1123000850. Its totient is φ = 1123000848.

The previous prime is 1123000831. The next prime is 1123000889. The reversal of 1123000849 is 9480003211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1111222225 + 11778624 = 33335^2 + 3432^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123000849 - 2⁵ = 1123000817 is a prime.

It is a super-2 number, since 2×1123000849² = 2522261813709441602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123000819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561500424 + 561500425.

It is an arithmetic number, because the mean of its divisors is an integer number (561500425).

Almost surely, 2^1123000849 is an apocalyptic number.

It is an amenable number.

1123000849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123000849 is an equidigital number, since it uses as much as digits as its factorization.

1123000849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1123000849 is about 33511.2048276394. The cubic root of 1123000849 is about 1039.4254867435.

The spelling of 1123000849 in words is "one billion, one hundred twenty-three million, eight hundred forty-nine", and thus it is an aban number.