1166135 has 12 divisors (see below), whose sum is σ = 1444728. Its totient is φ = 903408.

The previous prime is 1166131. The next prime is 1166141. The reversal of 1166135 is 5316611.

It is a happy number.

It is not a de Polignac number, because 1166135 - 2² = 1166131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17372 + ... + 17438.

It is an arithmetic number, because the mean of its divisors is an integer number (120394).

2^1166135 is an apocalyptic number.

1166135 is a deficient number, since it is larger than the sum of its proper divisors (278593).

1166135 is an frugal number, since it uses more digits than its factorization.

1166135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 131 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 1166135 is about 1079.8773078457. The cubic root of 1166135 is about 105.2566661128.

The spelling of 1166135 in words is "one million, one hundred sixty-six thousand, one hundred thirty-five".