1216414118 has 4 divisors (see below), whose sum is σ = 1824621180. Its totient is φ = 608207058.

The previous prime is 1216414099. The next prime is 1216414163. The reversal of 1216414118 is 8114146121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304103528 + ... + 304103531.

It is an arithmetic number, because the mean of its divisors is an integer number (456155295).

Almost surely, 2^1216414118 is an apocalyptic number.

1216414118 is a deficient number, since it is larger than the sum of its proper divisors (608207062).

1216414118 is an equidigital number, since it uses as much as digits as its factorization.

1216414118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608207061.

The product of its digits is 1536, while the sum is 29.

The square root of 1216414118 is about 34877.1288669237. The cubic root of 1216414118 is about 1067.4818116527.

The spelling of 1216414118 in words is "one billion, two hundred sixteen million, four hundred fourteen thousand, one hundred eighteen".