1117381229 has 4 divisors (see below), whose sum is σ = 1117979676. Its totient is φ = 1116782784.

The previous prime is 1117381217. The next prime is 1117381231. The reversal of 1117381229 is 9221837111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28249225 + 1089132004 = 5315^2 + 33002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117381229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117381249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296414 + ... + 300159.

It is an arithmetic number, because the mean of its divisors is an integer number (279494919).

Almost surely, 2^1117381229 is an apocalyptic number.

It is an amenable number.

1117381229 is a deficient number, since it is larger than the sum of its proper divisors (598447).

1117381229 is an equidigital number, since it uses as much as digits as its factorization.

1117381229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598446.

The product of its digits is 6048, while the sum is 35.

The square root of 1117381229 is about 33427.2527887052. The cubic root of 1117381229 is about 1037.6887867421.

The spelling of 1117381229 in words is "one billion, one hundred seventeen million, three hundred eighty-one thousand, two hundred twenty-nine".