142172286 has 8 divisors (see below), whose sum is σ = 284344584. Its totient is φ = 47390760.

The previous prime is 142172267. The next prime is 142172287. The reversal of 142172286 is 682271241.

142172286 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.

142172286 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142172287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11847685 + ... + 11847696.

It is an arithmetic number, because the mean of its divisors is an integer number (35543073).

Almost surely, 2^142172286 is an apocalyptic number.

142172286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142172286 is a wasteful number, since it uses less digits than its factorization.

142172286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23695386.

The product of its digits is 10752, while the sum is 33.

The square root of 142172286 is about 11923.6020564257. The cubic root of 142172286 is about 521.9212532230.

The spelling of 142172286 in words is "one hundred forty-two million, one hundred seventy-two thousand, two hundred eighty-six".