1152181 has 2 divisors, whose sum is σ = 1152182. Its totient is φ = 1152180.

The previous prime is 1152163. The next prime is 1152187. The reversal of 1152181 is 1812511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 17956 = 1065^2 + 134^2 .

It is an emirp because it is prime and its reverse (1812511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1152181 - 2⁵ = 1152149 is a prime.

It is a super-2 number, since 2×1152181² = 2655042113522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1152187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576090 + 576091.

It is an arithmetic number, because the mean of its divisors is an integer number (576091).

2^1152181 is an apocalyptic number.

It is an amenable number.

1152181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152181 is an equidigital number, since it uses as much as digits as its factorization.

1152181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80, while the sum is 19.

The square root of 1152181 is about 1073.3969442848. The cubic root of 1152181 is about 104.8351456914.

Adding to 1152181 its reverse (1812511), we get a palindrome (2964692).

The spelling of 1152181 in words is "one million, one hundred fifty-two thousand, one hundred eighty-one".