622143361 has 8 divisors (see below), whose sum is σ = 711641664. Its totient is φ = 532800240.

The previous prime is 622143343. The next prime is 622143437. The reversal of 622143361 is 163341226.

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

It is not a de Polignac number, because 622143361 - 2⁵ = 622143329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622143341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30070 + ... + 46351.

It is an arithmetic number, because the mean of its divisors is an integer number (88955208).

Almost surely, 2^622143361 is an apocalyptic number.

It is an amenable number.

622143361 is a deficient number, since it is larger than the sum of its proper divisors (89498303).

622143361 is a wasteful number, since it uses less digits than its factorization.

622143361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77591.

The product of its digits is 5184, while the sum is 28.

The square root of 622143361 is about 24942.8017872893. The cubic root of 622143361 is about 853.6833746447.

Adding to 622143361 its reverse (163341226), we get a palindrome (785484587).

The spelling of 622143361 in words is "six hundred twenty-two million, one hundred forty-three thousand, three hundred sixty-one".