1158428575 has 24 divisors (see below), whose sum is σ = 1515438720. Its totient is φ = 876002400.

The previous prime is 1158428549. The next prime is 1158428591. The reversal of 1158428575 is 5758248511.

It is not a de Polignac number, because 1158428575 - 2¹¹ = 1158426527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230742 + ... + 235708.

It is an arithmetic number, because the mean of its divisors is an integer number (63143280).

Almost surely, 2^1158428575 is an apocalyptic number.

1158428575 is a deficient number, since it is larger than the sum of its proper divisors (357010145).

1158428575 is a wasteful number, since it uses less digits than its factorization.

1158428575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487 (or 5482 counting only the distinct ones).

The product of its digits is 448000, while the sum is 46.

The square root of 1158428575 is about 34035.6956003546. The cubic root of 1158428575 is about 1050.2428992096.

It can be divided in two parts, 1158428 and 575, that added together give a triangular number (1159003 = T₁₅₂₂).

The spelling of 1158428575 in words is "one billion, one hundred fifty-eight million, four hundred twenty-eight thousand, five hundred seventy-five".