161134241 has 2 divisors, whose sum is σ = 161134242. Its totient is φ = 161134240.

The previous prime is 161134229. The next prime is 161134243. The reversal of 161134241 is 142431161.

161134241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104448400 + 56685841 = 10220^2 + 7529^2 .

It is an emirp because it is prime and its reverse (142431161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161134241 - 2²⁶ = 94025377 is a prime.

Together with 161134243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (161134243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80567120 + 80567121.

It is an arithmetic number, because the mean of its divisors is an integer number (80567121).

Almost surely, 2^161134241 is an apocalyptic number.

It is an amenable number.

161134241 is a deficient number, since it is larger than the sum of its proper divisors (1).

161134241 is an equidigital number, since it uses as much as digits as its factorization.

161134241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 161134241 is about 12693.8662747013. The cubic root of 161134241 is about 544.1633387564.

The spelling of 161134241 in words is "one hundred sixty-one million, one hundred thirty-four thousand, two hundred forty-one".