1158043881 has 16 divisors (see below), whose sum is σ = 1576903680. Its totient is φ = 755779200.

The previous prime is 1158043877. The next prime is 1158043903. The reversal of 1158043881 is 1883408511.

It is not a de Polignac number, because 1158043881 - 2² = 1158043877 is a prime.

It is a super-2 number, since 2×1158043881² = 2682131260643084322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1158043181) 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 15 ways as a sum of consecutive naturals, for example, 5496 + ... + 48438.

It is an arithmetic number, because the mean of its divisors is an integer number (98556480).

Almost surely, 2^1158043881 is an apocalyptic number.

It is an amenable number.

1158043881 is a deficient number, since it is larger than the sum of its proper divisors (418859799).

1158043881 is a wasteful number, since it uses less digits than its factorization.

1158043881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43136.

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 1158043881 is about 34030.0437995604. The cubic root of 1158043881 is about 1050.1266305327.

The spelling of 1158043881 in words is "one billion, one hundred fifty-eight million, forty-three thousand, eight hundred eighty-one".