1166201 has 4 divisors (see below), whose sum is σ = 1227600. Its totient is φ = 1104804.

The previous prime is 1166153. The next prime is 1166213. The reversal of 1166201 is 1026611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1026611 = 311 ⋅3301.

It is a cyclic number.

It is not a de Polignac number, because 1166201 - 2¹⁴ = 1149817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166201.

It is not an unprimeable number, because it can be changed into a prime (1166101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30671 + ... + 30708.

It is an arithmetic number, because the mean of its divisors is an integer number (306900).

2^1166201 is an apocalyptic number.

It is an amenable number.

1166201 is a deficient number, since it is larger than the sum of its proper divisors (61399).

1166201 is an equidigital number, since it uses as much as digits as its factorization.

1166201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61398.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1166201 is about 1079.9078664405. The cubic root of 1166201 is about 105.2586518203.

The spelling of 1166201 in words is "one million, one hundred sixty-six thousand, two hundred one".