12342261 has 4 divisors (see below), whose sum is σ = 16456352. Its totient is φ = 8228172.

The previous prime is 12342259. The next prime is 12342263. The reversal of 12342261 is 16224321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16224321 = 3 ⋅5408107.

It is an interprime number because it is at equal distance from previous prime (12342259) and next prime (12342263).

It is not a de Polignac number, because 12342261 - 2¹ = 12342259 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 (12342263) 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, 2057041 + ... + 2057046.

It is an arithmetic number, because the mean of its divisors is an integer number (4114088).

Almost surely, 2^12342261 is an apocalyptic number.

It is an amenable number.

12342261 is a deficient number, since it is larger than the sum of its proper divisors (4114091).

12342261 is an equidigital number, since it uses as much as digits as its factorization.

12342261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114090.

The product of its digits is 576, while the sum is 21.

The square root of 12342261 is about 3513.1554192777. The cubic root of 12342261 is about 231.0990935583.

Adding to 12342261 its reverse (16224321), we get a palindrome (28566582).

The spelling of 12342261 in words is "twelve million, three hundred forty-two thousand, two hundred sixty-one".