142138085 has 8 divisors (see below), whose sum is σ = 170633760. Its totient is φ = 113665104.

The previous prime is 142138063. The next prime is 142138097. The reversal of 142138085 is 580831241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142138085 - 2¹² = 142133989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14894 + ... + 22496.

It is an arithmetic number, because the mean of its divisors is an integer number (21329220).

Almost surely, 2^142138085 is an apocalyptic number.

It is an amenable number.

142138085 is a deficient number, since it is larger than the sum of its proper divisors (28495675).

142138085 is an equidigital number, since it uses as much as digits as its factorization.

142138085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 142138085 is about 11922.1677978462. The cubic root of 142138085 is about 521.8793986984.

The spelling of 142138085 in words is "one hundred forty-two million, one hundred thirty-eight thousand, eighty-five".