11389015 has 8 divisors (see below), whose sum is σ = 14909328. Its totient is φ = 8282880.

The previous prime is 11389013. The next prime is 11389043. The reversal of 11389015 is 51098311.

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

It is not a de Polignac number, because 11389015 - 2¹ = 11389013 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 (11389013) 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, 103482 + ... + 103591.

It is an arithmetic number, because the mean of its divisors is an integer number (1863666).

Almost surely, 2^11389015 is an apocalyptic number.

11389015 is a deficient number, since it is larger than the sum of its proper divisors (3520313).

11389015 is a wasteful number, since it uses less digits than its factorization.

11389015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207089.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 11389015 is about 3374.7614730526. The cubic root of 11389015 is about 224.9893986775.

It can be divided in two parts, 1138 and 9015, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 11389015 in words is "eleven million, three hundred eighty-nine thousand, fifteen".