142086909 has 8 divisors (see below), whose sum is σ = 189672192. Its totient is φ = 94613120.

The previous prime is 142086887. The next prime is 142086911. The reversal of 142086909 is 909680241.

142086909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142086909 - 2⁵ = 142086877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142086929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24852 + ... + 30029.

It is an arithmetic number, because the mean of its divisors is an integer number (23709024).

Almost surely, 2^142086909 is an apocalyptic number.

It is an amenable number.

142086909 is a deficient number, since it is larger than the sum of its proper divisors (47585283).

142086909 is an equidigital number, since it uses as much as digits as its factorization.

142086909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55747.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 142086909 is about 11920.0213506520. The cubic root of 142086909 is about 521.8167579547.

The spelling of 142086909 in words is "one hundred forty-two million, eighty-six thousand, nine hundred nine".