1113556849 has 2 divisors, whose sum is σ = 1113556850. Its totient is φ = 1113556848.

The previous prime is 1113556823. The next prime is 1113556867. The reversal of 1113556849 is 9486553111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105895025 + 7661824 = 33255^2 + 2768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113556849 - 2⁷ = 1113556721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113556879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556778424 + 556778425.

It is an arithmetic number, because the mean of its divisors is an integer number (556778425).

Almost surely, 2^1113556849 is an apocalyptic number.

It is an amenable number.

1113556849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113556849 is an equidigital number, since it uses as much as digits as its factorization.

1113556849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 43.

The square root of 1113556849 is about 33369.9992358406. Note that the first 3 decimals coincide. The cubic root of 1113556849 is about 1036.5035593693.

The spelling of 1113556849 in words is "one billion, one hundred thirteen million, five hundred fifty-six thousand, eight hundred forty-nine".