11387115 has 16 divisors (see below), whose sum is σ = 20244000. Its totient is φ = 6073056.

The previous prime is 11387087. The next prime is 11387143. The reversal of 11387115 is 51178311.

It is an interprime number because it is at equal distance from previous prime (11387087) and next prime (11387143).

It is not a de Polignac number, because 11387115 - 2¹² = 11383019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42040 + ... + 42309.

It is an arithmetic number, because the mean of its divisors is an integer number (1265250).

Almost surely, 2^11387115 is an apocalyptic number.

11387115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11387115 is a deficient number, since it is larger than the sum of its proper divisors (8856885).

11387115 is an equidigital number, since it uses as much as digits as its factorization.

11387115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84363 (or 84357 counting only the distinct ones).

The product of its digits is 840, while the sum is 27.

The square root of 11387115 is about 3374.4799599346. The cubic root of 11387115 is about 224.9768865146.

The spelling of 11387115 in words is "eleven million, three hundred eighty-seven thousand, one hundred fifteen".