12542305 has 8 divisors (see below), whose sum is σ = 15083712. Its totient is φ = 10011888.

The previous prime is 12542293. The next prime is 12542317. The reversal of 12542305 is 50324521.

It is an interprime number because it is at equal distance from previous prime (12542293) and next prime (12542317).

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 12542305 - 2⁵ = 12542273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (1885464).

Almost surely, 2^12542305 is an apocalyptic number.

It is an amenable number.

12542305 is a deficient number, since it is larger than the sum of its proper divisors (2541407).

12542305 is an equidigital number, since it uses as much as digits as its factorization.

12542305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 12542305 is about 3541.5116828835. The cubic root of 12542305 is about 232.3409634249.

Adding to 12542305 its reverse (50324521), we get a palindrome (62866826).

The spelling of 12542305 in words is "twelve million, five hundred forty-two thousand, three hundred five".