11918743 has 2 divisors, whose sum is σ = 11918744. Its totient is φ = 11918742.

The previous prime is 11918713. The next prime is 11918747. The reversal of 11918743 is 34781911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11918743 - 2¹³ = 11910551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11918699 and 11918708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11918747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5959371 + 5959372.

It is an arithmetic number, because the mean of its divisors is an integer number (5959372).

Almost surely, 2^11918743 is an apocalyptic number.

11918743 is a deficient number, since it is larger than the sum of its proper divisors (1).

11918743 is an equidigital number, since it uses as much as digits as its factorization.

11918743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 34.

The square root of 11918743 is about 3452.3532553897. The cubic root of 11918743 is about 228.4249219066.

The spelling of 11918743 in words is "eleven million, nine hundred eighteen thousand, seven hundred forty-three".