12130776 has 128 divisors (see below), whose sum is σ = 39398400. Its totient is φ = 3386880.

The previous prime is 12130771. The next prime is 12130849. The reversal of 12130776 is 67703121.

12130776 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

12130776 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107296 + ... + 107408.

It is an arithmetic number, because the mean of its divisors is an integer number (307800).

Almost surely, 2^12130776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12130776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19699200).

12130776 is an abundant number, since it is smaller than the sum of its proper divisors (27267624).

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

12130776 is a wasteful number, since it uses less digits than its factorization.

12130776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 12130776 is about 3482.9263558106. The cubic root of 12130776 is about 229.7715185338.

Adding to 12130776 its reverse (67703121), we get a palindrome (79833897).

The spelling of 12130776 in words is "twelve million, one hundred thirty thousand, seven hundred seventy-six".