11542439 has 8 divisors (see below), whose sum is σ = 12251088. Its totient is φ = 10837120.

The previous prime is 11542423. The next prime is 11542451. The reversal of 11542439 is 93424511.

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 11542439 - 2⁴ = 11542423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542459) 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, 13544 + ... + 14370.

It is an arithmetic number, because the mean of its divisors is an integer number (1531386).

Almost surely, 2^11542439 is an apocalyptic number.

11542439 is a deficient number, since it is larger than the sum of its proper divisors (708649).

11542439 is an equidigital number, since it uses as much as digits as its factorization.

11542439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its digits is 4320, while the sum is 29.

The square root of 11542439 is about 3397.4165184740. The cubic root of 11542439 is about 225.9951900718.

The spelling of 11542439 in words is "eleven million, five hundred forty-two thousand, four hundred thirty-nine".