1161106 has 4 divisors (see below), whose sum is σ = 1741662. Its totient is φ = 580552.

The previous prime is 1161101. The next prime is 1161107. The reversal of 1161106 is 6011611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 275625 = 941^2 + 525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1161106.

It is not an unprimeable number, because it can be changed into a prime (1161101) 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 as a sum of consecutive naturals, namely, 290275 + ... + 290278.

2^1161106 is an apocalyptic number.

1161106 is the 682-nd centered pentagonal number.

1161106 is a deficient number, since it is larger than the sum of its proper divisors (580556).

1161106 is an equidigital number, since it uses as much as digits as its factorization.

1161106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580555.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1161106 is about 1077.5462867088. The cubic root of 1161106 is about 105.1051403378.

Adding to 1161106 its reverse (6011611), we get a palindrome (7172717).

The spelling of 1161106 in words is "one million, one hundred sixty-one thousand, one hundred six".