12542302 has 4 divisors (see below), whose sum is σ = 18813456. Its totient is φ = 6271150.

The previous prime is 12542293. The next prime is 12542317. The reversal of 12542302 is 20324521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20324521 = 7 ⋅2903503.

It is a self number, because there is not a number n which added to its sum of digits gives 12542302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3135574 + ... + 3135577.

It is an arithmetic number, because the mean of its divisors is an integer number (4703364).

Almost surely, 2^12542302 is an apocalyptic number.

12542302 is a deficient number, since it is larger than the sum of its proper divisors (6271154).

12542302 is an equidigital number, since it uses as much as digits as its factorization.

12542302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6271153.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12542302 is about 3541.5112593355. The cubic root of 12542302 is about 232.3409449003.

Adding to 12542302 its reverse (20324521), we get a palindrome (32866823).

The spelling of 12542302 in words is "twelve million, five hundred forty-two thousand, three hundred two".