142722002 has 8 divisors (see below), whose sum is σ = 216488700. Its totient is φ = 70559104.

The previous prime is 142722001. The next prime is 142722037. The reversal of 142722002 is 200227241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 137334961 + 5387041 = 11719^2 + 2321^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142722001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400727 + ... + 401082.

Almost surely, 2^142722002 is an apocalyptic number.

142722002 is a deficient number, since it is larger than the sum of its proper divisors (73766698).

142722002 is an equidigital number, since it uses as much as digits as its factorization.

142722002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801900.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 142722002 is about 11946.6314080581. The cubic root of 142722002 is about 522.5930659984.

Adding to 142722002 its reverse (200227241), we get a palindrome (342949243).

The spelling of 142722002 in words is "one hundred forty-two million, seven hundred twenty-two thousand, two".