12180653 has 16 divisors (see below), whose sum is σ = 13907520. Its totient is φ = 10596096.

The previous prime is 12180647. The next prime is 12180671. The reversal of 12180653 is 35608121.

It is a cyclic number.

It is not a de Polignac number, because 12180653 - 2¹⁸ = 11918509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13451 + ... + 14327.

It is an arithmetic number, because the mean of its divisors is an integer number (869220).

Almost surely, 2^12180653 is an apocalyptic number.

It is an amenable number.

12180653 is a deficient number, since it is larger than the sum of its proper divisors (1726867).

12180653 is a wasteful number, since it uses less digits than its factorization.

12180653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12180653 is about 3490.0792254618. The cubic root of 12180653 is about 230.0859980866.

Adding to 12180653 its reverse (35608121), we get a palindrome (47788774).

The spelling of 12180653 in words is "twelve million, one hundred eighty thousand, six hundred fifty-three".