12160778 has 24 divisors (see below), whose sum is σ = 21266208. Its totient is φ = 5108832.

The previous prime is 12160769. The next prime is 12160781. The reversal of 12160778 is 87706121.

12160778 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

12160778 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74525 + ... + 74687.

It is an arithmetic number, because the mean of its divisors is an integer number (886092).

Almost surely, 2^12160778 is an apocalyptic number.

12160778 is a deficient number, since it is larger than the sum of its proper divisors (9105430).

12160778 is an equidigital number, since it uses as much as digits as its factorization.

12160778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 12160778 is about 3487.2307064489. The cubic root of 12160778 is about 229.9607872658.

Adding to 12160778 its reverse (87706121), we get a palindrome (99866899).

The spelling of 12160778 in words is "twelve million, one hundred sixty thousand, seven hundred seventy-eight".