11132987 has 4 divisors (see below), whose sum is σ = 11151936. Its totient is φ = 11114040.

The previous prime is 11132959. The next prime is 11133007. The reversal of 11132987 is 78923111.

11132987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78923111 = 3067 ⋅25733.

It is a cyclic number.

It is not a de Polignac number, because 11132987 - 2⁶ = 11132923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11132287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8564 + ... + 9777.

It is an arithmetic number, because the mean of its divisors is an integer number (2787984).

Almost surely, 2^11132987 is an apocalyptic number.

11132987 is a deficient number, since it is larger than the sum of its proper divisors (18949).

11132987 is an equidigital number, since it uses as much as digits as its factorization.

11132987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18948.

The product of its digits is 3024, while the sum is 32.

The square root of 11132987 is about 3336.6131031332. The cubic root of 11132987 is about 223.2906650993.

The spelling of 11132987 in words is "eleven million, one hundred thirty-two thousand, nine hundred eighty-seven".