1230091616 has 72 divisors (see below), whose sum is σ = 2752856064. Its totient is φ = 537788160.

The previous prime is 1230091607. The next prime is 1230091691. The reversal of 1230091616 is 6161900321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146081 + ... + 154271.

It is an arithmetic number, because the mean of its divisors is an integer number (38234112).

Almost surely, 2^1230091616 is an apocalyptic number.

1230091616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230091616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376428032).

1230091616 is an abundant number, since it is smaller than the sum of its proper divisors (1522764448).

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

1230091616 is a wasteful number, since it uses less digits than its factorization.

1230091616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252 (or 8225 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1230091616 is about 35072.6619463080. The cubic root of 1230091616 is about 1071.4678709716.

Adding to 1230091616 its reverse (6161900321), we get a palindrome (7391991937).

The spelling of 1230091616 in words is "one billion, two hundred thirty million, ninety-one thousand, six hundred sixteen".