1158287 has 8 divisors (see below), whose sum is σ = 1258320. Its totient is φ = 1059840.

The previous prime is 1158271. The next prime is 1158293. The reversal of 1158287 is 7828511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1158287 - 2⁴ = 1158271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158217) 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 7 ways as a sum of consecutive naturals, for example, 1487 + ... + 2127.

It is an arithmetic number, because the mean of its divisors is an integer number (157290).

2^1158287 is an apocalyptic number.

1158287 is a deficient number, since it is larger than the sum of its proper divisors (100033).

1158287 is a wasteful number, since it uses less digits than its factorization.

1158287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its digits is 4480, while the sum is 32.

The square root of 1158287 is about 1076.2374273366. The cubic root of 1158287 is about 105.0200113031.

The spelling of 1158287 in words is "one million, one hundred fifty-eight thousand, two hundred eighty-seven".