422332161 has 4 divisors (see below), whose sum is σ = 563109552. Its totient is φ = 281554772.

The previous prime is 422332147. The next prime is 422332193. The reversal of 422332161 is 161233224.

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 422332161 - 2⁵ = 422332129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422332661) 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, 70388691 + ... + 70388696.

It is an arithmetic number, because the mean of its divisors is an integer number (140777388).

Almost surely, 2^422332161 is an apocalyptic number.

It is an amenable number.

422332161 is a deficient number, since it is larger than the sum of its proper divisors (140777391).

422332161 is a wasteful number, since it uses less digits than its factorization.

422332161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140777390.

The product of its digits is 1728, while the sum is 24.

The square root of 422332161 is about 20550.7216661605. The cubic root of 422332161 is about 750.2708124246.

Adding to 422332161 its reverse (161233224), we get a palindrome (583565385).

The spelling of 422332161 in words is "four hundred twenty-two million, three hundred thirty-two thousand, one hundred sixty-one".