1143258 has 8 divisors (see below), whose sum is σ = 2286528. Its totient is φ = 381084.

The previous prime is 1143257. The next prime is 1143269. The reversal of 1143258 is 8523411.

It is a sphenic number, since it is the product of 3 distinct primes.

1143258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1143257) 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 3 ways as a sum of consecutive naturals, for example, 95266 + ... + 95277.

It is an arithmetic number, because the mean of its divisors is an integer number (285816).

2^1143258 is an apocalyptic number.

1143258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1143258 is a wasteful number, since it uses less digits than its factorization.

1143258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190548.

The product of its digits is 960, while the sum is 24.

The square root of 1143258 is about 1069.2324349738. The cubic root of 1143258 is about 104.5638141096.

Adding to 1143258 its reverse (8523411), we get a palindrome (9666669).

The spelling of 1143258 in words is "one million, one hundred forty-three thousand, two hundred fifty-eight".