1118904497 has 4 divisors (see below), whose sum is σ = 1137869040. Its totient is φ = 1099939956.

The previous prime is 1118904469. The next prime is 1118904503. The reversal of 1118904497 is 7944098111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118904497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118903497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9482183 + ... + 9482300.

It is an arithmetic number, because the mean of its divisors is an integer number (284467260).

Almost surely, 2^1118904497 is an apocalyptic number.

It is an amenable number.

1118904497 is a deficient number, since it is larger than the sum of its proper divisors (18964543).

1118904497 is an equidigital number, since it uses as much as digits as its factorization.

1118904497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18964542.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 1118904497 is about 33450.0298505098. The cubic root of 1118904497 is about 1038.1601151004.

The spelling of 1118904497 in words is "one billion, one hundred eighteen million, nine hundred four thousand, four hundred ninety-seven".