142805120 has 32 divisors (see below), whose sum is σ = 341395020. Its totient is φ = 57121792.

The previous prime is 142805119. The next prime is 142805141. The reversal of 142805120 is 21508241.

142805120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140754496 + 2050624 = 11864^2 + 1432^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110927 + ... + 112206.

Almost surely, 2^142805120 is an apocalyptic number.

142805120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142805120 is an abundant number, since it is smaller than the sum of its proper divisors (198589900).

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

142805120 is an equidigital number, since it uses as much as digits as its factorization.

142805120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223152 (or 223140 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 142805120 is about 11950.1096229282. The cubic root of 142805120 is about 522.6944950244.

The spelling of 142805120 in words is "one hundred forty-two million, eight hundred five thousand, one hundred twenty".