142140202 has 8 divisors (see below), whose sum is σ = 213293412. Its totient is φ = 71042400.

The previous prime is 142140181. The next prime is 142140221. The reversal of 142140202 is 202041241.

It can be written as a sum of positive squares in 2 ways, for example, as 134583201 + 7557001 = 11601^2 + 2749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6699 + ... + 18142.

Almost surely, 2^142140202 is an apocalyptic number.

142140202 is a deficient number, since it is larger than the sum of its proper divisors (71153210).

142140202 is a wasteful number, since it uses less digits than its factorization.

142140202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27704.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 142140202 is about 11922.2565817047. The cubic root of 142140202 is about 521.8819896371.

Adding to 142140202 its reverse (202041241), we get a palindrome (344181443).

The spelling of 142140202 in words is "one hundred forty-two million, one hundred forty thousand, two hundred two".