11542387 has 8 divisors (see below), whose sum is σ = 11717856. Its totient is φ = 11368512.

The previous prime is 11542379. The next prime is 11542397. The reversal of 11542387 is 78324511.

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

It is a cyclic number.

It is not a de Polignac number, because 11542387 - 2³ = 11542379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11542327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23458 + ... + 23944.

It is an arithmetic number, because the mean of its divisors is an integer number (1464732).

Almost surely, 2^11542387 is an apocalyptic number.

11542387 is a deficient number, since it is larger than the sum of its proper divisors (175469).

11542387 is a wasteful number, since it uses less digits than its factorization.

11542387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797.

The product of its digits is 6720, while the sum is 31.

The square root of 11542387 is about 3397.4088655915. The cubic root of 11542387 is about 225.9948506932.

Adding to 11542387 its reverse (78324511), we get a palindrome (89866898).

The spelling of 11542387 in words is "eleven million, five hundred forty-two thousand, three hundred eighty-seven".