142219152 has 140 divisors (see below), whose sum is σ = 420826860. Its totient is φ = 46531584.

The previous prime is 142219151. The next prime is 142219163. The reversal of 142219152 is 251912241.

142219152 is a `hidden beast` number, since 1 + 422 + 191 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53934336 + 88284816 = 7344^2 + 9396^2 .

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 (142219151) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1038028 + ... + 1038164.

Almost surely, 2^142219152 is an apocalyptic number.

142219152 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 142219152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210413430).

142219152 is an abundant number, since it is smaller than the sum of its proper divisors (278607708).

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

142219152 is an equidigital number, since it uses as much as digits as its factorization.

142219152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 231 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 142219152 is about 11925.5671563243. The cubic root of 142219152 is about 521.9785960308.

The spelling of 142219152 in words is "one hundred forty-two million, two hundred nineteen thousand, one hundred fifty-two".