1118563361 has 8 divisors (see below), whose sum is σ = 1132657344. Its totient is φ = 1104484240.

The previous prime is 1118563351. The next prime is 1118563363. The reversal of 1118563361 is 1633658111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118563361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118563363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290831 + ... + 294651.

It is an arithmetic number, because the mean of its divisors is an integer number (141582168).

Almost surely, 2^1118563361 is an apocalyptic number.

It is an amenable number.

1118563361 is a deficient number, since it is larger than the sum of its proper divisors (14093983).

1118563361 is an equidigital number, since it uses as much as digits as its factorization.

1118563361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7431.

The product of its digits is 12960, while the sum is 35.

The square root of 1118563361 is about 33444.9302735108. The cubic root of 1118563361 is about 1038.0545982644.

The spelling of 1118563361 in words is "one billion, one hundred eighteen million, five hundred sixty-three thousand, three hundred sixty-one".