1152161 has 2 divisors, whose sum is σ = 1152162. Its totient is φ = 1152160.

The previous prime is 1152157. The next prime is 1152163. The reversal of 1152161 is 1612511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 28561 = 1060^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152161 - 2² = 1152157 is a prime.

Together with 1152163, 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 (1152163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576080 + 576081.

It is an arithmetic number, because the mean of its divisors is an integer number (576081).

2^1152161 is an apocalyptic number.

It is an amenable number.

1152161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152161 is an equidigital number, since it uses as much as digits as its factorization.

1152161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60, while the sum is 17.

The square root of 1152161 is about 1073.3876280263. The cubic root of 1152161 is about 104.8345390983.

Adding to 1152161 its reverse (1612511), we get a palindrome (2764672).

The spelling of 1152161 in words is "one million, one hundred fifty-two thousand, one hundred sixty-one".