161061227 has 2 divisors, whose sum is σ = 161061228. Its totient is φ = 161061226.

The previous prime is 161061217. The next prime is 161061269. The reversal of 161061227 is 722160161.

It is a weak prime.

It is an emirp because it is prime and its reverse (722160161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161061227 - 2⁴ = 161061211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161061196 and 161061205.

It is not a weakly prime, because it can be changed into another prime (161061217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80530613 + 80530614.

It is an arithmetic number, because the mean of its divisors is an integer number (80530614).

Almost surely, 2^161061227 is an apocalyptic number.

161061227 is a deficient number, since it is larger than the sum of its proper divisors (1).

161061227 is an equidigital number, since it uses as much as digits as its factorization.

161061227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 161061227 is about 12690.9899929044. The cubic root of 161061227 is about 544.0811349483.

The spelling of 161061227 in words is "one hundred sixty-one million, sixty-one thousand, two hundred twenty-seven".