142131210 has 64 divisors (see below), whose sum is σ = 386709120. Its totient is φ = 33143040.

The previous prime is 142131179. The next prime is 142131217. The reversal of 142131210 is 12131241.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142131210.

It is not an unprimeable number, because it can be changed into a prime (142131217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2181 + ... + 17000.

It is an arithmetic number, because the mean of its divisors is an integer number (6042330).

Almost surely, 2^142131210 is an apocalyptic number.

142131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142131210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193354560).

142131210 is an abundant number, since it is smaller than the sum of its proper divisors (244577910).

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

142131210 is a wasteful number, since it uses less digits than its factorization.

142131210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19223.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 142131210 is about 11921.8794659231. The cubic root of 142131210 is about 521.8709843955.

Adding to 142131210 its reverse (12131241), we get a palindrome (154262451).

The spelling of 142131210 in words is "one hundred forty-two million, one hundred thirty-one thousand, two hundred ten".