1158849 has 6 divisors (see below), whose sum is σ = 1673906. Its totient is φ = 772560.

The previous prime is 1158847. The next prime is 1158863. The reversal of 1158849 is 9488511.

It can be written as a sum of positive squares in only one way, i.e., 1140624 + 18225 = 1068^2 + 135^2 .

It is not a de Polignac number, because 1158849 - 2¹ = 1158847 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1158841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64372 + ... + 64389.

2^1158849 is an apocalyptic number.

It is an amenable number.

1158849 is a deficient number, since it is larger than the sum of its proper divisors (515057).

1158849 is a wasteful number, since it uses less digits than its factorization.

1158849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128767 (or 128764 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 1158849 is about 1076.4984904773. The cubic root of 1158849 is about 105.0369937675.

The spelling of 1158849 in words is "one million, one hundred fifty-eight thousand, eight hundred forty-nine".