422081161 has 4 divisors (see below), whose sum is σ = 422209024. Its totient is φ = 421953300.

The previous prime is 422081147. The next prime is 422081203. The reversal of 422081161 is 161180224.

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 422081161 - 2⁵ = 422081129 is a prime.

It is a super-2 number, since 2×422081161² = 356305012942215842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422081111) 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, 58845 + ... + 65626.

It is an arithmetic number, because the mean of its divisors is an integer number (105552256).

Almost surely, 2^422081161 is an apocalyptic number.

It is an amenable number.

422081161 is a deficient number, since it is larger than the sum of its proper divisors (127863).

422081161 is a wasteful number, since it uses less digits than its factorization.

422081161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127862.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 422081161 is about 20544.6139170343. The cubic root of 422081161 is about 750.1221495864.

The spelling of 422081161 in words is "four hundred twenty-two million, eighty-one thousand, one hundred sixty-one".