1158827645 has 8 divisors (see below), whose sum is σ = 1411348704. Its totient is φ = 913225104.

The previous prime is 1158827611. The next prime is 1158827693. The reversal of 1158827645 is 5467288511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1158827645 - 2²⁰ = 1157779069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1158827645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729259 + ... + 1729928.

It is an arithmetic number, because the mean of its divisors is an integer number (176418588).

Almost surely, 2^1158827645 is an apocalyptic number.

It is an amenable number.

1158827645 is a deficient number, since it is larger than the sum of its proper divisors (252521059).

1158827645 is an equidigital number, since it uses as much as digits as its factorization.

1158827645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459259.

The product of its digits is 537600, while the sum is 47.

The square root of 1158827645 is about 34041.5576171244. The cubic root of 1158827645 is about 1050.3634856442.

The spelling of 1158827645 in words is "one billion, one hundred fifty-eight million, eight hundred twenty-seven thousand, six hundred forty-five".