1170437161 has 2 divisors, whose sum is σ = 1170437162. Its totient is φ = 1170437160.

The previous prime is 1170437159. The next prime is 1170437171. The reversal of 1170437161 is 1617340711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932691600 + 237745561 = 30540^2 + 15419^2 .

It is a cyclic number.

It is not a de Polignac number, because 1170437161 - 2¹ = 1170437159 is a prime.

Together with 1170437159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1170437111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585218580 + 585218581.

It is an arithmetic number, because the mean of its divisors is an integer number (585218581).

Almost surely, 2^1170437161 is an apocalyptic number.

It is an amenable number.

1170437161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1170437161 is an equidigital number, since it uses as much as digits as its factorization.

1170437161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 1170437161 is about 34211.6524155148. The cubic root of 1170437161 is about 1053.8594656883.

Adding to 1170437161 its reverse (1617340711), we get a palindrome (2787777872).

The spelling of 1170437161 in words is "one billion, one hundred seventy million, four hundred thirty-seven thousand, one hundred sixty-one".