11540239 has 8 divisors (see below), whose sum is σ = 12407040. Its totient is φ = 10699416.

The previous prime is 11540233. The next prime is 11540251. The reversal of 11540239 is 93204511.

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 11540239 - 2¹³ = 11532047 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 (11540233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5569 + ... + 7354.

It is an arithmetic number, because the mean of its divisors is an integer number (1550880).

Almost surely, 2^11540239 is an apocalyptic number.

11540239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11540239 is a deficient number, since it is larger than the sum of its proper divisors (866801).

11540239 is a wasteful number, since it uses less digits than its factorization.

11540239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12989.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 11540239 is about 3397.0927276128. The cubic root of 11540239 is about 225.9808308591.

The spelling of 11540239 in words is "eleven million, five hundred forty thousand, two hundred thirty-nine".