142273152 has 128 divisors (see below), whose sum is σ = 479971200. Its totient is φ = 40642560.

The previous prime is 142273151. The next prime is 142273163. The reversal of 142273152 is 251372241.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142273151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21252 + ... + 27132.

It is an arithmetic number, because the mean of its divisors is an integer number (3749775).

Almost surely, 2^142273152 is an apocalyptic number.

142273152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142273152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239985600).

142273152 is an abundant number, since it is smaller than the sum of its proper divisors (337698048).

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

142273152 is an equidigital number, since it uses as much as digits as its factorization.

142273152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911 (or 5893 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 142273152 is about 11927.8309847181. The cubic root of 142273152 is about 522.0446520133.

The spelling of 142273152 in words is "one hundred forty-two million, two hundred seventy-three thousand, one hundred fifty-two".