1131617 has 2 divisors, whose sum is σ = 1131618. Its totient is φ = 1131616.

The previous prime is 1131569. The next prime is 1131629. The reversal of 1131617 is 7161311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 516961 = 784^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131617 - 2⁶ = 1131553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1131677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565808 + 565809.

It is an arithmetic number, because the mean of its divisors is an integer number (565809).

2^1131617 is an apocalyptic number.

It is an amenable number.

1131617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131617 is an equidigital number, since it uses as much as digits as its factorization.

1131617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126, while the sum is 20.

The square root of 1131617 is about 1063.7748822002. The cubic root of 1131617 is about 104.2077025165.

Adding to 1131617 its reverse (7161311), we get a palindrome (8292928).

The spelling of 1131617 in words is "one million, one hundred thirty-one thousand, six hundred seventeen".