142141420 has 48 divisors (see below), whose sum is σ = 324626400. Its totient is φ = 52061184.

The previous prime is 142141409. The next prime is 142141453. The reversal of 142141420 is 24141241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6931 + ... + 18229.

It is an arithmetic number, because the mean of its divisors is an integer number (6763050).

Almost surely, 2^142141420 is an apocalyptic number.

142141420 is a gapful number since it is divisible by the number (10) 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 142141420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162313200).

142141420 is an abundant number, since it is smaller than the sum of its proper divisors (182484980).

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

142141420 is a wasteful number, since it uses less digits than its factorization.

142141420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362 (or 11360 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 142141420 is about 11922.3076625291. The cubic root of 142141420 is about 521.8834803025.

Adding to 142141420 its reverse (24141241), we get a palindrome (166282661).

The spelling of 142141420 in words is "one hundred forty-two million, one hundred forty-one thousand, four hundred twenty".