1175561 has 2 divisors, whose sum is σ = 1175562. Its totient is φ = 1175560.

The previous prime is 1175521. The next prime is 1175569. The reversal of 1175561 is 1655711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000000 + 175561 = 1000^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 1175561 - 2⁶ = 1175497 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1175561.

It is not a weakly prime, because it can be changed into another prime (1175569) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 587780 + 587781.

It is an arithmetic number, because the mean of its divisors is an integer number (587781).

2^1175561 is an apocalyptic number.

It is an amenable number.

1175561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1175561 is an equidigital number, since it uses as much as digits as its factorization.

1175561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 26.

The square root of 1175561 is about 1084.2329085579. The cubic root of 1175561 is about 105.5395058803.

The spelling of 1175561 in words is "one million, one hundred seventy-five thousand, five hundred sixty-one".