12130787 has 4 divisors (see below), whose sum is σ = 12549120. Its totient is φ = 11712456.

The previous prime is 12130771. The next prime is 12130849. The reversal of 12130787 is 78703121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78703121 = 7 ⋅11243303.

It is a cyclic number.

It is not a de Polignac number, because 12130787 - 2⁴ = 12130771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 418303 = 12130787 / (1 + 2 + 1 + 3 + 0 + 7 + 8 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12130087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209123 + ... + 209180.

It is an arithmetic number, because the mean of its divisors is an integer number (3137280).

Almost surely, 2^12130787 is an apocalyptic number.

12130787 is a deficient number, since it is larger than the sum of its proper divisors (418333).

12130787 is an equidigital number, since it uses as much as digits as its factorization.

12130787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418332.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 12130787 is about 3482.9279349421. The cubic root of 12130787 is about 229.7715879849.

The spelling of 12130787 in words is "twelve million, one hundred thirty thousand, seven hundred eighty-seven".