11542389 has 12 divisors (see below), whose sum is σ = 16098336. Its totient is φ = 7342368.

The previous prime is 11542379. The next prime is 11542397. The reversal of 11542389 is 98324511.

11542389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11542389 - 2⁴ = 11542373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542309) 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 11 ways as a sum of consecutive naturals, for example, 28017 + ... + 28425.

It is an arithmetic number, because the mean of its divisors is an integer number (1341528).

Almost surely, 2^11542389 is an apocalyptic number.

It is an amenable number.

11542389 is a deficient number, since it is larger than the sum of its proper divisors (4555947).

11542389 is an frugal number, since it uses more digits than its factorization.

11542389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 435 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 11542389 is about 3397.4091599335. The cubic root of 11542389 is about 225.9948637463.

The spelling of 11542389 in words is "eleven million, five hundred forty-two thousand, three hundred eighty-nine".