1818124043 has 2 divisors, whose sum is σ = 1818124044. Its totient is φ = 1818124042.

The previous prime is 1818124037. The next prime is 1818124069. The reversal of 1818124043 is 3404218181.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1818124043 - 2¹⁰ = 1818123019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1818124013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909062021 + 909062022.

It is an arithmetic number, because the mean of its divisors is an integer number (909062022).

Almost surely, 2^1818124043 is an apocalyptic number.

1818124043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1818124043 is an equidigital number, since it uses as much as digits as its factorization.

1818124043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1818124043 is about 42639.4657916818. The cubic root of 1818124043 is about 1220.5095164172.

It can be divided in two parts, 18181 and 24043, that added together give a palindrome (42224).

The spelling of 1818124043 in words is "one billion, eight hundred eighteen million, one hundred twenty-four thousand, forty-three".