1171165741 has 2 divisors, whose sum is σ = 1171165742. Its totient is φ = 1171165740.

The previous prime is 1171165733. The next prime is 1171165781. The reversal of 1171165741 is 1475611711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1011876100 + 159289641 = 31810^2 + 12621^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171165741 - 2³ = 1171165733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1171165697 and 1171165706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1171165711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585582870 + 585582871.

It is an arithmetic number, because the mean of its divisors is an integer number (585582871).

Almost surely, 2^1171165741 is an apocalyptic number.

It is an amenable number.

1171165741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171165741 is an equidigital number, since it uses as much as digits as its factorization.

1171165741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 34.

The square root of 1171165741 is about 34222.2988853759. The cubic root of 1171165741 is about 1054.0780910279.

The spelling of 1171165741 in words is "one billion, one hundred seventy-one million, one hundred sixty-five thousand, seven hundred forty-one".