142301220 has 48 divisors (see below), whose sum is σ = 421884288. Its totient is φ = 35714560.

The previous prime is 142301219. The next prime is 142301267. The reversal of 142301220 is 22103241.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 142301220.

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, 68736 + ... + 70775.

It is an arithmetic number, because the mean of its divisors is an integer number (8789256).

Almost surely, 2^142301220 is an apocalyptic number.

142301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142301220 is an abundant number, since it is smaller than the sum of its proper divisors (279583068).

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

142301220 is a wasteful number, since it uses less digits than its factorization.

142301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139540 (or 139538 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 142301220 is about 11929.0075027221. The cubic root of 142301220 is about 522.0789798436.

Adding to 142301220 its reverse (22103241), we get a palindrome (164404461).

The spelling of 142301220 in words is "one hundred forty-two million, three hundred one thousand, two hundred twenty".