142106210 has 16 divisors (see below), whose sum is σ = 259985592. Its totient is φ = 55910400.

The previous prime is 142106203. The next prime is 142106219. The reversal of 142106210 is 12601241.

It can be written as a sum of positive squares in 4 ways, for example, as 114554209 + 27552001 = 10703^2 + 5249^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142106219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115871 + ... + 117090.

Almost surely, 2^142106210 is an apocalyptic number.

142106210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142106210 is a deficient number, since it is larger than the sum of its proper divisors (117879382).

142106210 is a wasteful number, since it uses less digits than its factorization.

142106210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233029.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 142106210 is about 11920.8309274144. The cubic root of 142106210 is about 521.8403846428.

Adding to 142106210 its reverse (12601241), we get a palindrome (154707451).

The spelling of 142106210 in words is "one hundred forty-two million, one hundred six thousand, two hundred ten".