1113151229 has 2 divisors, whose sum is σ = 1113151230. Its totient is φ = 1113151228.

The previous prime is 1113151219. The next prime is 1113151297. The reversal of 1113151229 is 9221513111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1025728729 + 87422500 = 32027^2 + 9350^2 .

It is an emirp because it is prime and its reverse (9221513111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113151229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1113151198 and 1113151207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113151219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556575614 + 556575615.

It is an arithmetic number, because the mean of its divisors is an integer number (556575615).

Almost surely, 2^1113151229 is an apocalyptic number.

It is an amenable number.

1113151229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113151229 is an equidigital number, since it uses as much as digits as its factorization.

1113151229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 26.

The square root of 1113151229 is about 33363.9210675244. The cubic root of 1113151229 is about 1036.3776931320.

The spelling of 1113151229 in words is "one billion, one hundred thirteen million, one hundred fifty-one thousand, two hundred twenty-nine".