12342005 has 8 divisors (see below), whose sum is σ = 15949752. Its totient is φ = 9114048.

The previous prime is 12341981. The next prime is 12342013. The reversal of 12342005 is 50024321.

It can be written as a sum of positive squares in 4 ways, for example, as 2140369 + 10201636 = 1463^2 + 3194^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12342005 - 2⁶ = 12341941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94874 + ... + 95003.

It is an arithmetic number, because the mean of its divisors is an integer number (1993719).

Almost surely, 2^12342005 is an apocalyptic number.

It is an amenable number.

12342005 is a deficient number, since it is larger than the sum of its proper divisors (3607747).

12342005 is a wasteful number, since it uses less digits than its factorization.

12342005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189895.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12342005 is about 3513.1189846061. The cubic root of 12342005 is about 231.0974957479.

Adding to 12342005 its reverse (50024321), we get a palindrome (62366326).

It can be divided in two parts, 123 and 42005, that multiplied together give a palindrome (5166615).

The spelling of 12342005 in words is "twelve million, three hundred forty-two thousand, five".