12141657 has 20 divisors (see below), whose sum is σ = 19787856. Its totient is φ = 7358040.

The previous prime is 12141643. The next prime is 12141667. The reversal of 12141657 is 75614121.

It is a happy number.

12141657 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 1 + 657 = 666.

12141657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12141657 - 2⁴ = 12141641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 12141657.

It is not an unprimeable number, because it can be changed into a prime (12141607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5923 + ... + 7704.

Almost surely, 2^12141657 is an apocalyptic number.

It is an amenable number.

12141657 is a deficient number, since it is larger than the sum of its proper divisors (7646199).

12141657 is a wasteful number, since it uses less digits than its factorization.

12141657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13650 (or 13641 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 12141657 is about 3484.4880542197. The cubic root of 12141657 is about 229.8401977550.

Adding to 12141657 its reverse (75614121), we get a palindrome (87755778).

The spelling of 12141657 in words is "twelve million, one hundred forty-one thousand, six hundred fifty-seven".