142170882 has 64 divisors (see below), whose sum is σ = 344478720. Its totient is φ = 38211264.

The previous prime is 142170877. The next prime is 142170887. The reversal of 142170882 is 288071241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142170877) and next prime (142170887).

It is not an unprimeable number, because it can be changed into a prime (142170887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129528 + ... + 130620.

It is an arithmetic number, because the mean of its divisors is an integer number (5382480).

Almost surely, 2^142170882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142170882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172239360).

142170882 is an abundant number, since it is smaller than the sum of its proper divisors (202307838).

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

142170882 is a wasteful number, since it uses less digits than its factorization.

142170882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 142170882 is about 11923.5431814541. The cubic root of 142170882 is about 521.9195351670.

The spelling of 142170882 in words is "one hundred forty-two million, one hundred seventy thousand, eight hundred eighty-two".