1818014045 has 4 divisors (see below), whose sum is σ = 2181616860. Its totient is φ = 1454411232.

The previous prime is 1818014027. The next prime is 1818014053. The reversal of 1818014045 is 5404108181.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 834689881 + 983324164 = 28891^2 + 31358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1818014045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181801400 + ... + 181801409.

It is an arithmetic number, because the mean of its divisors is an integer number (545404215).

Almost surely, 2^1818014045 is an apocalyptic number.

It is an amenable number.

1818014045 is a deficient number, since it is larger than the sum of its proper divisors (363602815).

1818014045 is an equidigital number, since it uses as much as digits as its factorization.

1818014045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363602814.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 1818014045 is about 42638.1759107962. The cubic root of 1818014045 is about 1220.4849019776.

The spelling of 1818014045 in words is "one billion, eight hundred eighteen million, fourteen thousand, forty-five".