1216330735 has 8 divisors (see below), whose sum is σ = 1523057760. Its totient is φ = 930757344.

The previous prime is 1216330727. The next prime is 1216330741. The reversal of 1216330735 is 5370336121.

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

It is a cyclic number.

It is not a de Polignac number, because 1216330735 - 2³ = 1216330727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1216330697 and 1216330706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5288280 + ... + 5288509.

It is an arithmetic number, because the mean of its divisors is an integer number (190382220).

Almost surely, 2^1216330735 is an apocalyptic number.

1216330735 is a deficient number, since it is larger than the sum of its proper divisors (306727025).

1216330735 is a wasteful number, since it uses less digits than its factorization.

1216330735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10576817.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 1216330735 is about 34875.9334642100. The cubic root of 1216330735 is about 1067.4574197760.

Adding to 1216330735 its reverse (5370336121), we get a palindrome (6586666856).

The spelling of 1216330735 in words is "one billion, two hundred sixteen million, three hundred thirty thousand, seven hundred thirty-five".