11139999 has 8 divisors (see below), whose sum is σ = 15995952. Its totient is φ = 6855360.

The previous prime is 11139991. The next prime is 11140001. The reversal of 11139999 is 99993111.

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

It is not a de Polignac number, because 11139999 - 2³ = 11139991 is a prime.

11139999 is a modest number, since divided by 9999 gives 1113 as remainder.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11139999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11139991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142782 + ... + 142859.

It is an arithmetic number, because the mean of its divisors is an integer number (1999494).

Almost surely, 2^11139999 is an apocalyptic number.

11139999 is a deficient number, since it is larger than the sum of its proper divisors (4855953).

11139999 is a wasteful number, since it uses less digits than its factorization.

11139999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285657.

The product of its digits is 19683, while the sum is 42.

The square root of 11139999 is about 3337.6637038503. The cubic root of 11139999 is about 223.3375343879.

The spelling of 11139999 in words is "eleven million, one hundred thirty-nine thousand, nine hundred ninety-nine".