1118934563 has 4 divisors (see below), whose sum is σ = 1119204120. Its totient is φ = 1118665008.

The previous prime is 1118934559. The next prime is 1118934581. The reversal of 1118934563 is 3654398111.

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

It is a cyclic number.

It is not a de Polignac number, because 1118934563 - 2² = 1118934559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1118934563.

It is not an unprimeable number, because it can be changed into a prime (1118937563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128453 + ... + 136886.

It is an arithmetic number, because the mean of its divisors is an integer number (279801030).

Almost surely, 2^1118934563 is an apocalyptic number.

1118934563 is a deficient number, since it is larger than the sum of its proper divisors (269557).

1118934563 is an equidigital number, since it uses as much as digits as its factorization.

1118934563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269556.

The product of its digits is 77760, while the sum is 41.

The square root of 1118934563 is about 33450.4792641301. The cubic root of 1118934563 is about 1038.1694137917.

The spelling of 1118934563 in words is "one billion, one hundred eighteen million, nine hundred thirty-four thousand, five hundred sixty-three".