12130775 has 36 divisors (see below), whose sum is σ = 16902192. Its totient is φ = 8616960.

The previous prime is 12130771. The next prime is 12130849. The reversal of 12130775 is 57703121.

It is not a de Polignac number, because 12130775 - 2² = 12130771 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 (12130771) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 166139 + ... + 166211.

Almost surely, 2^12130775 is an apocalyptic number.

12130775 is a deficient number, since it is larger than the sum of its proper divisors (4771417).

12130775 is a wasteful number, since it uses less digits than its factorization.

12130775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 12130775 is about 3482.9262122531. The cubic root of 12130775 is about 229.7715122201.

Adding to 12130775 its reverse (57703121), we get a palindrome (69833896).

The spelling of 12130775 in words is "twelve million, one hundred thirty thousand, seven hundred seventy-five".