622142 has 8 divisors (see below), whose sum is σ = 937416. Its totient is φ = 309672.

The previous prime is 622133. The next prime is 622151. The reversal of 622142 is 241226.

It is an interprime number because it is at equal distance from previous prime (622133) and next prime (622151).

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

It is a self number, because there is not a number n which added to its sum of digits gives 622142.

It is a congruent number.

It is an unprimeable number.

622142 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 8 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (117177).

2⁶²²¹⁴² is an apocalyptic number.

622142 is a deficient number, since it is larger than the sum of its proper divisors (315274).

622142 is a wasteful number, since it uses less digits than its factorization.

622142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its digits is 192, while the sum is 17.

The square root of 622142 is about 788.7597859932. The cubic root of 622142 is about 85.3682752139.

Adding to 622142 its reverse (241226), we get a palindrome (863368).

The spelling of 622142 in words is "six hundred twenty-two thousand, one hundred forty-two".