11019139 has 8 divisors (see below), whose sum is σ = 11531520. Its totient is φ = 10509576.

The previous prime is 11019133. The next prime is 11019187. The reversal of 11019139 is 93191011.

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 11019139 - 2¹¹ = 11017091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11019133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14794 + ... + 15520.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^11019139 is an apocalyptic number.

11019139 is a deficient number, since it is larger than the sum of its proper divisors (512381).

11019139 is an equidigital number, since it uses as much as digits as its factorization.

11019139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 11019139 is about 3319.5088492125. The cubic root of 11019139 is about 222.5269184282.

The spelling of 11019139 in words is "eleven million, nineteen thousand, one hundred thirty-nine".