12130657 has 16 divisors (see below), whose sum is σ = 15207552. Its totient is φ = 9400320.

The previous prime is 12130649. The next prime is 12130667. The reversal of 12130657 is 75603121.

It is a cyclic number.

It is not a de Polignac number, because 12130657 - 2³ = 12130649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12130627) 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 15 ways as a sum of consecutive naturals, for example, 19483 + ... + 20095.

It is an arithmetic number, because the mean of its divisors is an integer number (950472).

Almost surely, 2^12130657 is an apocalyptic number.

It is an amenable number.

12130657 is a deficient number, since it is larger than the sum of its proper divisors (3076895).

12130657 is a wasteful number, since it uses less digits than its factorization.

12130657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 12130657 is about 3482.9092724330. The cubic root of 12130657 is about 229.7707671969.

Adding to 12130657 its reverse (75603121), we get a palindrome (87733778).

The spelling of 12130657 in words is "twelve million, one hundred thirty thousand, six hundred fifty-seven".