12104778 has 16 divisors (see below), whose sum is σ = 27668160. Its totient is φ = 3458496.

The previous prime is 12104753. The next prime is 12104783. The reversal of 12104778 is 87740121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144063 + ... + 144146.

It is an arithmetic number, because the mean of its divisors is an integer number (1729260).

Almost surely, 2^12104778 is an apocalyptic number.

12104778 is an abundant number, since it is smaller than the sum of its proper divisors (15563382).

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

12104778 is a wasteful number, since it uses less digits than its factorization.

12104778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288221.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 12104778 is about 3479.1921476113. The cubic root of 12104778 is about 229.6072566472.

Adding to 12104778 its reverse (87740121), we get a palindrome (99844899).

The spelling of 12104778 in words is "twelve million, one hundred four thousand, seven hundred seventy-eight".