142423212 has 48 divisors (see below), whose sum is σ = 361398240. Its totient is φ = 43471872.

The previous prime is 142423201. The next prime is 142423213. The reversal of 142423212 is 212324241.

142423212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (142423213) 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, 1887 + ... + 16982.

It is an arithmetic number, because the mean of its divisors is an integer number (7529130).

Almost surely, 2^142423212 is an apocalyptic number.

142423212 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 142423212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180699120).

142423212 is an abundant number, since it is smaller than the sum of its proper divisors (218975028).

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

142423212 is a wasteful number, since it uses less digits than its factorization.

142423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18930 (or 18928 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 142423212 is about 11934.1196575198. The cubic root of 142423212 is about 522.2281265332.

Adding to 142423212 its reverse (212324241), we get a palindrome (354747453).

The spelling of 142423212 in words is "one hundred forty-two million, four hundred twenty-three thousand, two hundred twelve".