1216936803 has 8 divisors (see below), whose sum is σ = 1630273216. Its totient is φ = 807445800.

The previous prime is 1216936781. The next prime is 1216936807. The reversal of 1216936803 is 3086396121.

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

It is not a de Polignac number, because 1216936803 - 2⁸ = 1216936547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1216936807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960613 + ... + 961878.

It is an arithmetic number, because the mean of its divisors is an integer number (203784152).

Almost surely, 2^1216936803 is an apocalyptic number.

1216936803 is a deficient number, since it is larger than the sum of its proper divisors (413336413).

1216936803 is a wasteful number, since it uses less digits than its factorization.

1216936803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922705.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1216936803 is about 34884.6212964968. The cubic root of 1216936803 is about 1067.6346863535.

The spelling of 1216936803 in words is "one billion, two hundred sixteen million, nine hundred thirty-six thousand, eight hundred three".