12487142 has 16 divisors (see below), whose sum is σ = 19794240. Its totient is φ = 5891688.

The previous prime is 12487133. The next prime is 12487147. The reversal of 12487142 is 24178421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12487147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12713 + ... + 13659.

It is an arithmetic number, because the mean of its divisors is an integer number (1237140).

Almost surely, 2^12487142 is an apocalyptic number.

12487142 is a deficient number, since it is larger than the sum of its proper divisors (7307098).

12487142 is a wasteful number, since it uses less digits than its factorization.

12487142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its digits is 3584, while the sum is 29.

The square root of 12487142 is about 3533.7150422749. The cubic root of 12487142 is about 231.9998389813. Note that the first 3 decimals are identical.

The spelling of 12487142 in words is "twelve million, four hundred eighty-seven thousand, one hundred forty-two".