1213064616 has 16 divisors (see below), whose sum is σ = 3032661600. Its totient is φ = 404354864.

The previous prime is 1213064599. The next prime is 1213064617. The reversal of 1213064616 is 6164603121.

It is not an unprimeable number, because it can be changed into a prime (1213064617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25272156 + ... + 25272203.

It is an arithmetic number, because the mean of its divisors is an integer number (189541350).

Almost surely, 2^1213064616 is an apocalyptic number.

It is an amenable number.

1213064616 is an abundant number, since it is smaller than the sum of its proper divisors (1819596984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213064616 is a wasteful number, since it uses less digits than its factorization.

1213064616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50544368 (or 50544364 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1213064616 is about 34829.0771626238. The cubic root of 1213064616 is about 1066.5011096351.

Adding to 1213064616 its reverse (6164603121), we get a palindrome (7377667737).

The spelling of 1213064616 in words is "one billion, two hundred thirteen million, sixty-four thousand, six hundred sixteen".