1623113218 has 8 divisors (see below), whose sum is σ = 2436063948. Its totient is φ = 811091904.

The previous prime is 1623113201. The next prime is 1623113231. The reversal of 1623113218 is 8123113261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1622720089 + 393129 = 40283^2 + 627^2 .

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, 227971 + ... + 234982.

Almost surely, 2^1623113218 is an apocalyptic number.

1623113218 is a deficient number, since it is larger than the sum of its proper divisors (812950730).

1623113218 is a wasteful number, since it uses less digits than its factorization.

1623113218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464708.

The product of its digits is 1728, while the sum is 28.

The square root of 1623113218 is about 40287.8792939018. The cubic root of 1623113218 is about 1175.2121465143.

Adding to 1623113218 its reverse (8123113261), we get a palindrome (9746226479).

The spelling of 1623113218 in words is "one billion, six hundred twenty-three million, one hundred thirteen thousand, two hundred eighteen".