12142502 has 4 divisors (see below), whose sum is σ = 18213756. Its totient is φ = 6071250.

The previous prime is 12142499. The next prime is 12142511. The reversal of 12142502 is 20524121.

It is a semiprime because it is the product of two primes.

It is a congruent 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 as a sum of consecutive naturals, namely, 3035624 + ... + 3035627.

It is an arithmetic number, because the mean of its divisors is an integer number (4553439).

Almost surely, 2^12142502 is an apocalyptic number.

12142502 is a deficient number, since it is larger than the sum of its proper divisors (6071254).

12142502 is an equidigital number, since it uses as much as digits as its factorization.

12142502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071253.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12142502 is about 3484.6093037814. The cubic root of 12142502 is about 229.8455295495.

Adding to 12142502 its reverse (20524121), we get a palindrome (32666623).

The spelling of 12142502 in words is "twelve million, one hundred forty-two thousand, five hundred two".