12130345 has 8 divisors (see below), whose sum is σ = 14575176. Its totient is φ = 9691776.

The previous prime is 12130319. The next prime is 12130351. The reversal of 12130345 is 54303121.

It can be written as a sum of positive squares in 4 ways, for example, as 2214144 + 9916201 = 1488^2 + 3149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12130345 - 2¹³ = 12122153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6319 + ... + 8011.

It is an arithmetic number, because the mean of its divisors is an integer number (1821897).

Almost surely, 2^12130345 is an apocalyptic number.

It is an amenable number.

12130345 is a deficient number, since it is larger than the sum of its proper divisors (2444831).

12130345 is a wasteful number, since it uses less digits than its factorization.

12130345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12130345 is about 3482.8644820033. The cubic root of 12130345 is about 229.7687972818.

Adding to 12130345 its reverse (54303121), we get a palindrome (66433466).

The spelling of 12130345 in words is "twelve million, one hundred thirty thousand, three hundred forty-five".