12147120 has 60 divisors (see below), whose sum is σ = 40796496. Its totient is φ = 3239040.

The previous prime is 12147101. The next prime is 12147131. The reversal of 12147120 is 2174121.

12147120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12147093 and 12147102.

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, 7716 + ... + 9155.

Almost surely, 2^12147120 is an apocalyptic number.

12147120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12147120 is an abundant number, since it is smaller than the sum of its proper divisors (28649376).

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

12147120 is a wasteful number, since it uses less digits than its factorization.

12147120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890 (or 16881 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 12147120 is about 3485.2718688791. The cubic root of 12147120 is about 229.8746639109.

The spelling of 12147120 in words is "twelve million, one hundred forty-seven thousand, one hundred twenty".