1133158587 has 24 divisors (see below), whose sum is σ = 1666990080. Its totient is φ = 684169200.

The previous prime is 1133158577. The next prime is 1133158589. The reversal of 1133158587 is 7858513311.

It is not a de Polignac number, because 1133158587 - 2⁴ = 1133158571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1133158589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92614 + ... + 104132.

It is an arithmetic number, because the mean of its divisors is an integer number (69457920).

Almost surely, 2^1133158587 is an apocalyptic number.

1133158587 is a deficient number, since it is larger than the sum of its proper divisors (533831493).

1133158587 is a wasteful number, since it uses less digits than its factorization.

1133158587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11815 (or 11804 counting only the distinct ones).

The product of its digits is 100800, while the sum is 42.

The square root of 1133158587 is about 33662.4209913666. The cubic root of 1133158587 is about 1042.5500130703.

The spelling of 1133158587 in words is "one billion, one hundred thirty-three million, one hundred fifty-eight thousand, five hundred eighty-seven".