1161030 has 48 divisors (see below), whose sum is σ = 3030480. Its totient is φ = 284544.

The previous prime is 1161011. The next prime is 1161031. The reversal of 1161030 is 301611.

It is a junction number, because it is equal to n+sod(n) for n = 1160997 and 1161015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161031) 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 23 ways as a sum of consecutive naturals, for example, 4956 + ... + 5184.

It is an arithmetic number, because the mean of its divisors is an integer number (63135).

2^1161030 is an apocalyptic number.

1161030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515240).

1161030 is an abundant number, since it is smaller than the sum of its proper divisors (1869450).

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

1161030 is a wasteful number, since it uses less digits than its factorization.

1161030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1161030 is about 1077.5110208253. The cubic root of 1161030 is about 105.1028470746.

Adding to 1161030 its reverse (301611), we get a palindrome (1462641).

The spelling of 1161030 in words is "one million, one hundred sixty-one thousand, thirty".