1113133249 has 2 divisors, whose sum is σ = 1113133250. Its totient is φ = 1113133248.

The previous prime is 1113133211. The next prime is 1113133253. The reversal of 1113133249 is 9423313111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927628849 + 185504400 = 30457^2 + 13620^2 .

It is an emirp because it is prime and its reverse (9423313111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113133249 - 2¹⁵ = 1113100481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113133279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556566624 + 556566625.

It is an arithmetic number, because the mean of its divisors is an integer number (556566625).

Almost surely, 2^1113133249 is an apocalyptic number.

It is an amenable number.

1113133249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113133249 is an equidigital number, since it uses as much as digits as its factorization.

1113133249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 1113133249 is about 33363.6516136948. The cubic root of 1113133249 is about 1036.3721131261.

The spelling of 1113133249 in words is "one billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred forty-nine".