1165211 has 2 divisors, whose sum is σ = 1165212. Its totient is φ = 1165210.

The previous prime is 1165207. The next prime is 1165217. The reversal of 1165211 is 1125611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1165211 - 2² = 1165207 is a prime.

It is a Sophie Germain prime.

It is equal to p₉₀₄₃₁ and since 1165211 and 90431 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1165211.

It is not a weakly prime, because it can be changed into another prime (1165217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582605 + 582606.

It is an arithmetic number, because the mean of its divisors is an integer number (582606).

2^1165211 is an apocalyptic number.

1165211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165211 is an equidigital number, since it uses as much as digits as its factorization.

1165211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60, while the sum is 17.

The square root of 1165211 is about 1079.4493966833. The cubic root of 1165211 is about 105.2288583380.

The spelling of 1165211 in words is "one million, one hundred sixty-five thousand, two hundred eleven".