161167227 has 32 divisors (see below), whose sum is σ = 241366272. Its totient is φ = 95001984.

The previous prime is 161167199. The next prime is 161167241. The reversal of 161167227 is 722761161.

It is not a de Polignac number, because 161167227 - 2⁷ = 161167099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161167927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95848 + ... + 97514.

It is an arithmetic number, because the mean of its divisors is an integer number (7542696).

Almost surely, 2^161167227 is an apocalyptic number.

161167227 is a deficient number, since it is larger than the sum of its proper divisors (80199045).

161167227 is a wasteful number, since it uses less digits than its factorization.

161167227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787.

The product of its digits is 7056, while the sum is 33.

The square root of 161167227 is about 12695.1654971489. The cubic root of 161167227 is about 544.2004683511.

The spelling of 161167227 in words is "one hundred sixty-one million, one hundred sixty-seven thousand, two hundred twenty-seven".