12142307 has 4 divisors (see below), whose sum is σ = 12169800. Its totient is φ = 12114816.

The previous prime is 12142289. The next prime is 12142331. The reversal of 12142307 is 70324121.

12142307 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12142307 - 2¹⁸ = 11880163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12142337) 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, 13073 + ... + 13970.

It is an arithmetic number, because the mean of its divisors is an integer number (3042450).

Almost surely, 2^12142307 is an apocalyptic number.

12142307 is a deficient number, since it is larger than the sum of its proper divisors (27493).

12142307 is an equidigital number, since it uses as much as digits as its factorization.

12142307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27492.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12142307 is about 3484.5813234878. The cubic root of 12142307 is about 229.8442991574.

Adding to 12142307 its reverse (70324121), we get a palindrome (82466428).

The spelling of 12142307 in words is "twelve million, one hundred forty-two thousand, three hundred seven".