1158924823 has 6 divisors (see below), whose sum is σ = 1348137096. Its totient is φ = 993364092.

The previous prime is 1158924773. The next prime is 1158924847. The reversal of 1158924823 is 3284298511.

It is not a de Polignac number, because 1158924823 - 2⁹ = 1158924311 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 1158924823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158924853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11825715 + ... + 11825812.

It is an arithmetic number, because the mean of its divisors is an integer number (224689516).

Almost surely, 2^1158924823 is an apocalyptic number.

1158924823 is a deficient number, since it is larger than the sum of its proper divisors (189212273).

1158924823 is an equidigital number, since it uses as much as digits as its factorization.

1158924823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23651541 (or 23651534 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 1158924823 is about 34042.9849308194. The cubic root of 1158924823 is about 1050.3928455955.

The spelling of 1158924823 in words is "one billion, one hundred fifty-eight million, nine hundred twenty-four thousand, eight hundred twenty-three".