142063639 has 2 divisors, whose sum is σ = 142063640. Its totient is φ = 142063638.

The previous prime is 142063619. The next prime is 142063661. The reversal of 142063639 is 936360241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142063639 - 2⁷ = 142063511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142063619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71031819 + 71031820.

It is an arithmetic number, because the mean of its divisors is an integer number (71031820).

Almost surely, 2^142063639 is an apocalyptic number.

142063639 is a deficient number, since it is larger than the sum of its proper divisors (1).

142063639 is an equidigital number, since it uses as much as digits as its factorization.

142063639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 142063639 is about 11919.0452218288. The cubic root of 142063639 is about 521.7882699000.

The spelling of 142063639 in words is "one hundred forty-two million, sixty-three thousand, six hundred thirty-nine".