1158868 has 6 divisors (see below), whose sum is σ = 2028026. Its totient is φ = 579432.

The previous prime is 1158863. The next prime is 1158881. The reversal of 1158868 is 8688511.

It can be written as a sum of positive squares in only one way, i.e., 725904 + 432964 = 852^2 + 658^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158863) 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 as a sum of consecutive naturals, namely, 144855 + ... + 144862.

2^1158868 is an apocalyptic number.

It is an amenable number.

1158868 is a deficient number, since it is larger than the sum of its proper divisors (869158).

1158868 is a wasteful number, since it uses less digits than its factorization.

1158868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289721 (or 289719 counting only the distinct ones).

The product of its digits is 15360, while the sum is 37.

The square root of 1158868 is about 1076.5073153490. The cubic root of 1158868 is about 105.0375678118.

The spelling of 1158868 in words is "one million, one hundred fifty-eight thousand, eight hundred sixty-eight".