12347120 has 20 divisors (see below), whose sum is σ = 28707240. Its totient is φ = 4938816.

The previous prime is 12347099. The next prime is 12347123. The reversal of 12347120 is 2174321.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12347092 and 12347101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12347123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 77090 + ... + 77249.

It is an arithmetic number, because the mean of its divisors is an integer number (1435362).

Almost surely, 2^12347120 is an apocalyptic number.

12347120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12347120 is an abundant number, since it is smaller than the sum of its proper divisors (16360120).

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

12347120 is a wasteful number, since it uses less digits than its factorization.

12347120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154352 (or 154346 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12347120 is about 3513.8468947864. The cubic root of 12347120 is about 231.1294165590.

The spelling of 12347120 in words is "twelve million, three hundred forty-seven thousand, one hundred twenty".