11542987 has 8 divisors (see below), whose sum is σ = 12166560. Its totient is φ = 10929600.

The previous prime is 11542939. The next prime is 11542997. The reversal of 11542987 is 78924511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11542987 - 2⁷ = 11542859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11542907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162 + ... + 4807.

It is an arithmetic number, because the mean of its divisors is an integer number (1520820).

Almost surely, 2^11542987 is an apocalyptic number.

11542987 is a deficient number, since it is larger than the sum of its proper divisors (623573).

11542987 is a wasteful number, since it uses less digits than its factorization.

11542987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093.

The product of its digits is 20160, while the sum is 37.

The square root of 11542987 is about 3397.4971670334. The cubic root of 11542987 is about 225.9987665372.

The spelling of 11542987 in words is "eleven million, five hundred forty-two thousand, nine hundred eighty-seven".