12142072487 has 2 divisors, whose sum is σ = 12142072488. Its totient is φ = 12142072486.

The previous prime is 12142072463. The next prime is 12142072499. The reversal of 12142072487 is 78427024121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12142072487 - 2²⁶ = 12074963623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12142072487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12142072457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071036243 + 6071036244.

It is an arithmetic number, because the mean of its divisors is an integer number (6071036244).

Almost surely, 2^12142072487 is an apocalyptic number.

12142072487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142072487 is an equidigital number, since it uses as much as digits as its factorization.

12142072487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 38.

The spelling of 12142072487 in words is "twelve billion, one hundred forty-two million, seventy-two thousand, four hundred eighty-seven".