1131258 has 16 divisors (see below), whose sum is σ = 2278080. Its totient is φ = 374496.

The previous prime is 1131253. The next prime is 1131259. The reversal of 1131258 is 8521311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438 + ... + 1566.

It is an arithmetic number, because the mean of its divisors is an integer number (142380).

2^1131258 is an apocalyptic number.

1131258 is an abundant number, since it is smaller than the sum of its proper divisors (1146822).

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

1131258 is a wasteful number, since it uses less digits than its factorization.

1131258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301.

The product of its digits is 240, while the sum is 21.

The square root of 1131258 is about 1063.6061301064. The cubic root of 1131258 is about 104.1966815550.

Adding to 1131258 its reverse (8521311), we get a palindrome (9652569).

The spelling of 1131258 in words is "one million, one hundred thirty-one thousand, two hundred fifty-eight".