1166157 has 12 divisors (see below), whose sum is σ = 1747200. Its totient is φ = 777276.

The previous prime is 1166153. The next prime is 1166213. The reversal of 1166157 is 7516611.

It is not a de Polignac number, because 1166157 - 2² = 1166153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1166157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2157 + ... + 2642.

It is an arithmetic number, because the mean of its divisors is an integer number (145600).

2^1166157 is an apocalyptic number.

It is an amenable number.

1166157 is a deficient number, since it is larger than the sum of its proper divisors (581043).

1166157 is an frugal number, since it uses more digits than its factorization.

1166157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814 (or 4802 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 1166157 is about 1079.8874941400. The cubic root of 1166157 is about 105.2573280236.

It can be divided in two parts, 11 and 66157, that multiplied together give a palindrome (727727).

The spelling of 1166157 in words is "one million, one hundred sixty-six thousand, one hundred fifty-seven".