867223161 has 12 divisors (see below), whose sum is σ = 1431606592. Its totient is φ = 495556056.

The previous prime is 867223157. The next prime is 867223271. The reversal of 867223161 is 161322768.

It is not a de Polignac number, because 867223161 - 2² = 867223157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867223111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6882661 + ... + 6882786.

Almost surely, 2^867223161 is an apocalyptic number.

It is an amenable number.

867223161 is a deficient number, since it is larger than the sum of its proper divisors (564383431).

867223161 is a wasteful number, since it uses less digits than its factorization.

867223161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765460 (or 13765457 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 867223161 is about 29448.6529573086. The cubic root of 867223161 is about 953.6235246978.

The spelling of 867223161 in words is "eight hundred sixty-seven million, two hundred twenty-three thousand, one hundred sixty-one".