142427687 has 2 divisors, whose sum is σ = 142427688. Its totient is φ = 142427686.

The previous prime is 142427639. The next prime is 142427713. The reversal of 142427687 is 786724241.

It is a happy number.

142427687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142427687 - 2¹² = 142423591 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142427617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71213843 + 71213844.

It is an arithmetic number, because the mean of its divisors is an integer number (71213844).

Almost surely, 2^142427687 is an apocalyptic number.

142427687 is a deficient number, since it is larger than the sum of its proper divisors (1).

142427687 is an equidigital number, since it uses as much as digits as its factorization.

142427687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 41.

The square root of 142427687 is about 11934.3071436929. The cubic root of 142427687 is about 522.2335960218.

The spelling of 142427687 in words is "one hundred forty-two million, four hundred twenty-seven thousand, six hundred eighty-seven".