12342151 has 4 divisors (see below), whose sum is σ = 12551400. Its totient is φ = 12132904.

The previous prime is 12342149. The next prime is 12342167. The reversal of 12342151 is 15124321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15124321 = 3889².

It is a cyclic number.

It is not a de Polignac number, because 12342151 - 2¹ = 12342149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342751) 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, 104536 + ... + 104653.

It is an arithmetic number, because the mean of its divisors is an integer number (3137850).

Almost surely, 2^12342151 is an apocalyptic number.

12342151 is a deficient number, since it is larger than the sum of its proper divisors (209249).

12342151 is an equidigital number, since it uses as much as digits as its factorization.

12342151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209248.

The product of its digits is 240, while the sum is 19.

The square root of 12342151 is about 3513.1397638010. The cubic root of 12342151 is about 231.0984070019.

Adding to 12342151 its reverse (15124321), we get a palindrome (27466472).

The spelling of 12342151 in words is "twelve million, three hundred forty-two thousand, one hundred fifty-one".