12652140 has 24 divisors (see below), whose sum is σ = 35426160. Its totient is φ = 3373888.

The previous prime is 12652109. The next prime is 12652147. The reversal of 12652140 is 4125621.

It is not an unprimeable number, because it can be changed into a prime (12652147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105375 + ... + 105494.

It is an arithmetic number, because the mean of its divisors is an integer number (1476090).

Almost surely, 2^12652140 is an apocalyptic number.

12652140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12652140 is an abundant number, since it is smaller than the sum of its proper divisors (22774020).

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

12652140 is a wasteful number, since it uses less digits than its factorization.

12652140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210881 (or 210879 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12652140 is about 3556.9846780665. The cubic root of 12652140 is about 233.0172090908.

Adding to 12652140 its reverse (4125621), we get a palindrome (16777761).

The spelling of 12652140 in words is "twelve million, six hundred fifty-two thousand, one hundred forty".