161167223 has 24 divisors (see below), whose sum is σ = 192559680. Its totient is φ = 134447040.

The previous prime is 161167199. The next prime is 161167241. The reversal of 161167223 is 322761161.

It is not a de Polignac number, because 161167223 - 2¹⁴ = 161150839 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 (161167243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 594578 + ... + 594848.

It is an arithmetic number, because the mean of its divisors is an integer number (8023320).

Almost surely, 2^161167223 is an apocalyptic number.

161167223 is a deficient number, since it is larger than the sum of its proper divisors (31392457).

161167223 is a wasteful number, since it uses less digits than its factorization.

161167223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 560 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 161167223 is about 12695.1653396086. The cubic root of 161167223 is about 544.2004638489.

The spelling of 161167223 in words is "one hundred sixty-one million, one hundred sixty-seven thousand, two hundred twenty-three".