1148241987 has 10 divisors (see below), whose sum is σ = 1715275188. Its totient is φ = 765494604.

The previous prime is 1148241977. The next prime is 1148242013. The reversal of 1148241987 is 7891428411.

It is not a de Polignac number, because 1148241987 - 2⁴ = 1148241971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1148241937) by changing a digit.

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 in 9 ways as a sum of consecutive naturals, for example, 7087833 + ... + 7087994.

Almost surely, 2^1148241987 is an apocalyptic number.

1148241987 is a deficient number, since it is larger than the sum of its proper divisors (567033201).

1148241987 is an equidigital number, since it uses as much as digits as its factorization.

1148241987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14175839 (or 14175830 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 1148241987 is about 33885.7195142733. The cubic root of 1148241987 is about 1047.1554107940.

The spelling of 1148241987 in words is "one billion, one hundred forty-eight million, two hundred forty-one thousand, nine hundred eighty-seven".