622133561 has 4 divisors (see below), whose sum is σ = 711009792. Its totient is φ = 533257332.

The previous prime is 622133543. The next prime is 622133569. The reversal of 622133561 is 165331226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 622133561 - 2¹⁸ = 621871417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622133569) 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, 44438105 + ... + 44438118.

It is an arithmetic number, because the mean of its divisors is an integer number (177752448).

Almost surely, 2^622133561 is an apocalyptic number.

It is an amenable number.

622133561 is a deficient number, since it is larger than the sum of its proper divisors (88876231).

622133561 is an equidigital number, since it uses as much as digits as its factorization.

622133561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88876230.

The product of its digits is 6480, while the sum is 29.

The square root of 622133561 is about 24942.6053370533. The cubic root of 622133561 is about 853.6788922153.

Adding to 622133561 its reverse (165331226), we get a palindrome (787464787).

The spelling of 622133561 in words is "six hundred twenty-two million, one hundred thirty-three thousand, five hundred sixty-one".