11118493 has 4 divisors (see below), whose sum is σ = 11772540. Its totient is φ = 10464448.

The previous prime is 11118487. The next prime is 11118511. The reversal of 11118493 is 39481111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39481111 = 257 ⋅153623.

It can be written as a sum of positive squares in 2 ways, for example, as 8922169 + 2196324 = 2987^2 + 1482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11118493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11118413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326998 + ... + 327031.

It is an arithmetic number, because the mean of its divisors is an integer number (2943135).

Almost surely, 2^11118493 is an apocalyptic number.

It is an amenable number.

11118493 is a deficient number, since it is larger than the sum of its proper divisors (654047).

11118493 is an equidigital number, since it uses as much as digits as its factorization.

11118493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654046.

The product of its digits is 864, while the sum is 28.

The square root of 11118493 is about 3334.4404328163. The cubic root of 11118493 is about 223.1937225510.

It can be divided in two parts, 11118 and 493, that added together give a palindrome (11611).

The spelling of 11118493 in words is "eleven million, one hundred eighteen thousand, four hundred ninety-three".