818144146 has 8 divisors (see below), whose sum is σ = 1250371404. Its totient is φ = 401353680.

The previous prime is 818144077. The next prime is 818144179. The reversal of 818144146 is 641441818.

It can be written as a sum of positive squares in 2 ways, for example, as 812877121 + 5267025 = 28511^2 + 2295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3859065 + ... + 3859276.

Almost surely, 2^818144146 is an apocalyptic number.

818144146 is a deficient number, since it is larger than the sum of its proper divisors (432227258).

818144146 is a wasteful number, since it uses less digits than its factorization.

818144146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718396.

The product of its digits is 24576, while the sum is 37.

The square root of 818144146 is about 28603.2191544938. The cubic root of 818144146 is about 935.2835065430.

The spelling of 818144146 in words is "eight hundred eighteen million, one hundred forty-four thousand, one hundred forty-six".