1117558642 has 12 divisors (see below), whose sum is σ = 1689283998. Its totient is φ = 554496800.

The previous prime is 1117558627. The next prime is 1117558643. The reversal of 1117558642 is 2468557111.

It can be written as a sum of positive squares in only one way, i.e., 823058721 + 294499921 = 28689^2 + 17161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1117558595 and 1117558604.

It is not an unprimeable number, because it can be changed into a prime (1117558643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18042 + ... + 50602.

Almost surely, 2^1117558642 is an apocalyptic number.

1117558642 is a deficient number, since it is larger than the sum of its proper divisors (571725356).

1117558642 is an equidigital number, since it uses as much as digits as its factorization.

1117558642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32825 (or 32694 counting only the distinct ones).

The product of its digits is 67200, while the sum is 40.

The square root of 1117558642 is about 33429.9064013048. The cubic root of 1117558642 is about 1037.7437037610.

The spelling of 1117558642 in words is "one billion, one hundred seventeen million, five hundred fifty-eight thousand, six hundred forty-two".