1158748657 has 4 divisors (see below), whose sum is σ = 1264089456. Its totient is φ = 1053407860.

The previous prime is 1158748639. The next prime is 1158748673. The reversal of 1158748657 is 7568478511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7568478511 = 11 ⋅688043501.

It is a cyclic number.

It is not a de Polignac number, because 1158748657 - 2¹¹ = 1158746609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158748607) 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, 52670383 + ... + 52670404.

It is an arithmetic number, because the mean of its divisors is an integer number (316022364).

Almost surely, 2^1158748657 is an apocalyptic number.

It is an amenable number.

1158748657 is a deficient number, since it is larger than the sum of its proper divisors (105340799).

1158748657 is a wasteful number, since it uses less digits than its factorization.

1158748657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105340798.

The product of its digits is 1881600, while the sum is 52.

The square root of 1158748657 is about 34040.3974271747. The cubic root of 1158748657 is about 1050.3396201463.

The spelling of 1158748657 in words is "one billion, one hundred fifty-eight million, seven hundred forty-eight thousand, six hundred fifty-seven".