1158741 has 6 divisors (see below), whose sum is σ = 1673750. Its totient is φ = 772488.

The previous prime is 1158719. The next prime is 1158743. The reversal of 1158741 is 1478511.

It can be written as a sum of positive squares in only one way, i.e., 731025 + 427716 = 855^2 + 654^2 .

It is not a de Polignac number, because 1158741 - 2⁷ = 1158613 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 (1158743) 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 5 ways as a sum of consecutive naturals, for example, 64366 + ... + 64383.

2^1158741 is an apocalyptic number.

It is an amenable number.

1158741 is a deficient number, since it is larger than the sum of its proper divisors (515009).

1158741 is a wasteful number, since it uses less digits than its factorization.

1158741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128755 (or 128752 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 1158741 is about 1076.4483266743. The cubic root of 1158741 is about 105.0337306597.

It can be divided in two parts, 11587 and 41, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 1158741 in words is "one million, one hundred fifty-eight thousand, seven hundred forty-one".