1117253947 has 2 divisors, whose sum is σ = 1117253948. Its totient is φ = 1117253946.

The previous prime is 1117253933. The next prime is 1117253959. The reversal of 1117253947 is 7493527111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117253947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1117259947) 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, 558626973 + 558626974.

It is an arithmetic number, because the mean of its divisors is an integer number (558626974).

Almost surely, 2^1117253947 is an apocalyptic number.

1117253947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117253947 is an equidigital number, since it uses as much as digits as its factorization.

1117253947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 1117253947 is about 33425.3488687852. The cubic root of 1117253947 is about 1037.6493838609.

The spelling of 1117253947 in words is "one billion, one hundred seventeen million, two hundred fifty-three thousand, nine hundred forty-seven".