1117906018 has 4 divisors (see below), whose sum is σ = 1676859030. Its totient is φ = 558953008.

The previous prime is 1117905979. The next prime is 1117906039. The reversal of 1117906018 is 8106097111.

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

It can be written as a sum of positive squares in only one way, i.e., 783272169 + 334633849 = 27987^2 + 18293^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279476503 + ... + 279476506.

Almost surely, 2^1117906018 is an apocalyptic number.

1117906018 is a deficient number, since it is larger than the sum of its proper divisors (558953012).

1117906018 is an equidigital number, since it uses as much as digits as its factorization.

1117906018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558953011.

The product of its (nonzero) digits is 3024, while the sum is 34.

The square root of 1117906018 is about 33435.1015850109. The cubic root of 1117906018 is about 1037.8512148717.

The spelling of 1117906018 in words is "one billion, one hundred seventeen million, nine hundred six thousand, eighteen".