1158765473 has 4 divisors (see below), whose sum is σ = 1160220180. Its totient is φ = 1157310768.

The previous prime is 1158765467. The next prime is 1158765479. The reversal of 1158765473 is 3745678511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3745678511 = 7691 ⋅487021.

It is an interprime number because it is at equal distance from previous prime (1158765467) and next prime (1158765479).

It can be written as a sum of positive squares in 2 ways, for example, as 655974544 + 502790929 = 25612^2 + 22423^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158765473 - 2⁴ = 1158765457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158765479) by changing a digit.

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, 726158 + ... + 727751.

It is an arithmetic number, because the mean of its divisors is an integer number (290055045).

Almost surely, 2^1158765473 is an apocalyptic number.

It is an amenable number.

1158765473 is a deficient number, since it is larger than the sum of its proper divisors (1454707).

1158765473 is an equidigital number, since it uses as much as digits as its factorization.

1158765473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454706.

The product of its digits is 705600, while the sum is 47.

The square root of 1158765473 is about 34040.6444269200. The cubic root of 1158765473 is about 1050.3447010370.

The spelling of 1158765473 in words is "one billion, one hundred fifty-eight million, seven hundred sixty-five thousand, four hundred seventy-three".