1185601 has 2 divisors, whose sum is σ = 1185602. Its totient is φ = 1185600.

The previous prime is 1185589. The next prime is 1185617. The reversal of 1185601 is 1065811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 62001 = 1060^2 + 249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1185601 - 2⁹ = 1185089 is a prime.

It is a Chen prime.

It is equal to p₉₁₉₀₃ and since 1185601 and 91903 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1185661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592800 + 592801.

It is an arithmetic number, because the mean of its divisors is an integer number (592801).

2^1185601 is an apocalyptic number.

It is an amenable number.

1185601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185601 is an equidigital number, since it uses as much as digits as its factorization.

1185601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1185601 is about 1088.8530663042. The cubic root of 1185601 is about 105.8391115672.

The spelling of 1185601 in words is "one million, one hundred eighty-five thousand, six hundred one".