12130406 has 4 divisors (see below), whose sum is σ = 18195612. Its totient is φ = 6065202.

The previous prime is 12130397. The next prime is 12130409. The reversal of 12130406 is 60403121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60403121 = 1753 ⋅34457.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130409) 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 as a sum of consecutive naturals, namely, 3032600 + ... + 3032603.

It is an arithmetic number, because the mean of its divisors is an integer number (4548903).

Almost surely, 2^12130406 is an apocalyptic number.

12130406 is a deficient number, since it is larger than the sum of its proper divisors (6065206).

12130406 is an equidigital number, since it uses as much as digits as its factorization.

12130406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6065205.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12130406 is about 3482.8732391518. The cubic root of 12130406 is about 229.7691824281.

Adding to 12130406 its reverse (60403121), we get a palindrome (72533527).

The spelling of 12130406 in words is "twelve million, one hundred thirty thousand, four hundred six".