142140322 has 32 divisors (see below), whose sum is σ = 229340160. Its totient is φ = 65918160.

The previous prime is 142140319. The next prime is 142140331. The reversal of 142140322 is 223041241.

It is a super-2 number, since 2×142140322² = 40407742276527368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142140322.

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 15 ways as a sum of consecutive naturals, for example, 224947 + ... + 225577.

It is an arithmetic number, because the mean of its divisors is an integer number (7166880).

Almost surely, 2^142140322 is an apocalyptic number.

142140322 is a deficient number, since it is larger than the sum of its proper divisors (87199838).

142140322 is a wasteful number, since it uses less digits than its factorization.

142140322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142140322 is about 11922.2616143079. The cubic root of 142140322 is about 521.8821365011.

Adding to 142140322 its reverse (223041241), we get a palindrome (365181563).

The spelling of 142140322 in words is "one hundred forty-two million, one hundred forty thousand, three hundred twenty-two".