12309134 has 4 divisors (see below), whose sum is σ = 18463704. Its totient is φ = 6154566.

The previous prime is 12309133. The next prime is 12309179. The reversal of 12309134 is 43190321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43190321 = 47 ⋅918943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12309133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077282 + ... + 3077285.

It is an arithmetic number, because the mean of its divisors is an integer number (4615926).

Almost surely, 2^12309134 is an apocalyptic number.

12309134 is a deficient number, since it is larger than the sum of its proper divisors (6154570).

12309134 is an equidigital number, since it uses as much as digits as its factorization.

12309134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6154569.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 12309134 is about 3508.4375439788. The cubic root of 12309134 is about 230.8921493253.

Adding to 12309134 its reverse (43190321), we get a palindrome (55499455).

The spelling of 12309134 in words is "twelve million, three hundred nine thousand, one hundred thirty-four".