622143 has 6 divisors (see below), whose sum is σ = 898664. Its totient is φ = 414756.

The previous prime is 622133. The next prime is 622151. The reversal of 622143 is 341226.

It is a happy number.

622143 is a `hidden beast` number, since 622 + 1 + 43 = 666.

It is not a de Polignac number, because 622143 - 2⁹ = 621631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34555 + ... + 34572.

2⁶²²¹⁴³ is an apocalyptic number.

622143 is a deficient number, since it is larger than the sum of its proper divisors (276521).

622143 is a wasteful number, since it uses less digits than its factorization.

622143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69133 (or 69130 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 622143 is about 788.7604198995. The cubic root of 622143 is about 85.3683209527.

Adding to 622143 its reverse (341226), we get a palindrome (963369).

The spelling of 622143 in words is "six hundred twenty-two thousand, one hundred forty-three".