142069687 has 2 divisors, whose sum is σ = 142069688. Its totient is φ = 142069686.

The previous prime is 142069667. The next prime is 142069703. The reversal of 142069687 is 786960241.

It is a strong prime.

It is an emirp because it is prime and its reverse (786960241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142069687 - 2¹⁹ = 141545399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142069667) 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, 71034843 + 71034844.

It is an arithmetic number, because the mean of its divisors is an integer number (71034844).

Almost surely, 2^142069687 is an apocalyptic number.

142069687 is a deficient number, since it is larger than the sum of its proper divisors (1).

142069687 is an equidigital number, since it uses as much as digits as its factorization.

142069687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 142069687 is about 11919.2989307257. The cubic root of 142069687 is about 521.7956744001.

The spelling of 142069687 in words is "one hundred forty-two million, sixty-nine thousand, six hundred eighty-seven".