12126371 has 4 divisors (see below), whose sum is σ = 12199152. Its totient is φ = 12053592.

The previous prime is 12126353. The next prime is 12126403. The reversal of 12126371 is 17362121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12126371 - 2⁶ = 12126307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12126571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36140 + ... + 36473.

It is an arithmetic number, because the mean of its divisors is an integer number (3049788).

Almost surely, 2^12126371 is an apocalyptic number.

12126371 is a deficient number, since it is larger than the sum of its proper divisors (72781).

12126371 is an equidigital number, since it uses as much as digits as its factorization.

12126371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72780.

The product of its digits is 504, while the sum is 23.

The square root of 12126371 is about 3482.2939278585. The cubic root of 12126371 is about 229.7437031636.

Adding to 12126371 its reverse (17362121), we get a palindrome (29488492).

The spelling of 12126371 in words is "twelve million, one hundred twenty-six thousand, three hundred seventy-one".