1158248992 has 12 divisors (see below), whose sum is σ = 2280302766. Its totient is φ = 579124480.

The previous prime is 1158248969. The next prime is 1158249007. The reversal of 1158248992 is 2998428511.

It can be written as a sum of positive squares in only one way, i.e., 589712656 + 568536336 = 24284^2 + 23844^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18097609 + ... + 18097672.

Almost surely, 2^1158248992 is an apocalyptic number.

It is an amenable number.

1158248992 is a deficient number, since it is larger than the sum of its proper divisors (1122053774).

1158248992 is an equidigital number, since it uses as much as digits as its factorization.

1158248992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36195291 (or 36195283 counting only the distinct ones).

The product of its digits is 414720, while the sum is 49.

The square root of 1158248992 is about 34033.0573413556. The cubic root of 1158248992 is about 1050.1886258253.

The spelling of 1158248992 in words is "one billion, one hundred fifty-eight million, two hundred forty-eight thousand, nine hundred ninety-two".