1161258 has 32 divisors (see below), whose sum is σ = 2720256. Its totient is φ = 323568.

The previous prime is 1161241. The next prime is 1161263. The reversal of 1161258 is 8521611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485 + ... + 2127.

It is an arithmetic number, because the mean of its divisors is an integer number (85008).

2^1161258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360128).

1161258 is an abundant number, since it is smaller than the sum of its proper divisors (1558998).

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

1161258 is a wasteful number, since it uses less digits than its factorization.

1161258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its digits is 480, while the sum is 24.

The square root of 1161258 is about 1077.6168150136. The cubic root of 1161258 is about 105.1097265640.

Adding to 1161258 its reverse (8521611), we get a palindrome (9682869).

The spelling of 1161258 in words is "one million, one hundred sixty-one thousand, two hundred fifty-eight".