142005322 has 8 divisors (see below), whose sum is σ = 213602400. Its totient is φ = 70804524.

The previous prime is 142005299. The next prime is 142005329. The reversal of 142005322 is 223500241.

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

It is a super-2 number, since 2×142005322² = 40331022952647368, 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 142005322.

It is not an unprimeable number, because it can be changed into a prime (142005329) 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 3 ways as a sum of consecutive naturals, for example, 98172 + ... + 99607.

It is an arithmetic number, because the mean of its divisors is an integer number (26700300).

Almost surely, 2^142005322 is an apocalyptic number.

142005322 is a deficient number, since it is larger than the sum of its proper divisors (71597078).

142005322 is a wasteful number, since it uses less digits than its factorization.

142005322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198140.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 142005322 is about 11916.5985918802. The cubic root of 142005322 is about 521.7168622515.

Adding to 142005322 its reverse (223500241), we get a palindrome (365505563).

The spelling of 142005322 in words is "one hundred forty-two million, five thousand, three hundred twenty-two".