12119778 has 24 divisors (see below), whose sum is σ = 28647216. Its totient is φ = 3672600.

The previous prime is 12119773. The next prime is 12119797. The reversal of 12119778 is 87791121.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12119773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30408 + ... + 30803.

It is an arithmetic number, because the mean of its divisors is an integer number (1193634).

Almost surely, 2^12119778 is an apocalyptic number.

12119778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12119778 is an abundant number, since it is smaller than the sum of its proper divisors (16527438).

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

12119778 is a wasteful number, since it uses less digits than its factorization.

12119778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61230 (or 61227 counting only the distinct ones).

The product of its digits is 7056, while the sum is 36.

The square root of 12119778 is about 3481.3471530429. The cubic root of 12119778 is about 229.7020590799.

The spelling of 12119778 in words is "twelve million, one hundred nineteen thousand, seven hundred seventy-eight".