1161006 has 48 divisors (see below), whose sum is σ = 2954880. Its totient is φ = 300720.

The previous prime is 1161001. The next prime is 1161007. The reversal of 1161006 is 6001611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3055 + ... + 3413.

It is an arithmetic number, because the mean of its divisors is an integer number (61560).

2^1161006 is an apocalyptic number.

It is a pronic number, being equal to 1077×1078.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477440).

1161006 is an abundant number, since it is smaller than the sum of its proper divisors (1793874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161006 is a wasteful number, since it uses less digits than its factorization.

1161006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1161006 is about 1077.4998839907. The cubic root of 1161006 is about 105.1021228655.

Adding to 1161006 its reverse (6001611), we get a palindrome (7162617).

The spelling of 1161006 in words is "one million, one hundred sixty-one thousand, six".