1158275764 has 12 divisors (see below), whose sum is σ = 2044921284. Its totient is φ = 574012544.

The previous prime is 1158275731. The next prime is 1158275803. The reversal of 1158275764 is 4675728511.

It can be written as a sum of positive squares in 2 ways, for example, as 515653264 + 642622500 = 22708^2 + 25350^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280827 + ... + 1281730.

It is an arithmetic number, because the mean of its divisors is an integer number (170410107).

Almost surely, 2^1158275764 is an apocalyptic number.

It is an amenable number.

1158275764 is a deficient number, since it is larger than the sum of its proper divisors (886645520).

1158275764 is a wasteful number, since it uses less digits than its factorization.

1158275764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562674 (or 2562672 counting only the distinct ones).

The product of its digits is 470400, while the sum is 46.

The square root of 1158275764 is about 34033.4506625467. The cubic root of 1158275764 is about 1050.1967171866.

The spelling of 1158275764 in words is "one billion, one hundred fifty-eight million, two hundred seventy-five thousand, seven hundred sixty-four".