622144133 has 4 divisors (see below), whose sum is σ = 670001388. Its totient is φ = 574286880.

The previous prime is 622144099. The next prime is 622144139. The reversal of 622144133 is 331441226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54656449 + 567487684 = 7393^2 + 23822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622144133 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 (622144139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23928608 + ... + 23928633.

It is an arithmetic number, because the mean of its divisors is an integer number (167500347).

Almost surely, 2^622144133 is an apocalyptic number.

It is an amenable number.

622144133 is a deficient number, since it is larger than the sum of its proper divisors (47857255).

622144133 is a wasteful number, since it uses less digits than its factorization.

622144133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47857254.

The product of its digits is 3456, while the sum is 26.

The square root of 622144133 is about 24942.8172626911. The cubic root of 622144133 is about 853.6837277484.

Adding to 622144133 its reverse (331441226), we get a palindrome (953585359).

The spelling of 622144133 in words is "six hundred twenty-two million, one hundred forty-four thousand, one hundred thirty-three".