1166251 has 8 divisors (see below), whose sum is σ = 1275264. Its totient is φ = 1061760.

The previous prime is 1166237. The next prime is 1166287. The reversal of 1166251 is 1526611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1166251 - 2⁵ = 1166219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1160251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 1633.

It is an arithmetic number, because the mean of its divisors is an integer number (159408).

2^1166251 is an apocalyptic number.

1166251 is a deficient number, since it is larger than the sum of its proper divisors (109013).

1166251 is a wasteful number, since it uses less digits than its factorization.

1166251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its digits is 360, while the sum is 22.

The square root of 1166251 is about 1079.9310163154. The cubic root of 1166251 is about 105.2601560942.

Adding to 1166251 its product of digits (360), we get a palindrome (1166611).

The spelling of 1166251 in words is "one million, one hundred sixty-six thousand, two hundred fifty-one".