84142146 has 64 divisors (see below), whose sum is σ = 204664320. Its totient is φ = 22728960.

The previous prime is 84142133. The next prime is 84142187. The reversal of 84142146 is 64124148.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19345 + ... + 23291.

It is an arithmetic number, because the mean of its divisors is an integer number (3197880).

Almost surely, 2^84142146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84142146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102332160).

84142146 is an abundant number, since it is smaller than the sum of its proper divisors (120522174).

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

84142146 is a wasteful number, since it uses less digits than its factorization.

84142146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999.

The product of its digits is 6144, while the sum is 30.

The square root of 84142146 is about 9172.9028120873. The cubic root of 84142146 is about 438.1988109354.

The spelling of 84142146 in words is "eighty-four million, one hundred forty-two thousand, one hundred forty-six".