12146724 has 36 divisors (see below), whose sum is σ = 31100160. Its totient is φ = 3996720.

The previous prime is 12146723. The next prime is 12146731. The reversal of 12146724 is 42764121.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (12146723) 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, 709 + ... + 4979.

Almost surely, 2^12146724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12146724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15550080).

12146724 is an abundant number, since it is smaller than the sum of its proper divisors (18953436).

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

12146724 is a wasteful number, since it uses less digits than its factorization.

12146724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360 (or 4355 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 12146724 is about 3485.2150579268. The cubic root of 12146724 is about 229.8721658879.

The spelling of 12146724 in words is "twelve million, one hundred forty-six thousand, seven hundred twenty-four".