11715285 has 16 divisors (see below), whose sum is σ = 19025856. Its totient is φ = 6154368.

The previous prime is 11715283. The next prime is 11715287. The reversal of 11715285 is 58251711.

11715285 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11715283) and next prime (11715287).

It is not a de Polignac number, because 11715285 - 2¹ = 11715283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11715283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4824 + ... + 6833.

It is an arithmetic number, because the mean of its divisors is an integer number (1189116).

Almost surely, 2^11715285 is an apocalyptic number.

11715285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11715285 is a deficient number, since it is larger than the sum of its proper divisors (7310571).

11715285 is a wasteful number, since it uses less digits than its factorization.

11715285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11732.

The product of its digits is 2800, while the sum is 30.

The square root of 11715285 is about 3422.7598513480. The cubic root of 11715285 is about 227.1176849715.

Adding to 11715285 its reverse (58251711), we get a palindrome (69966996).

The spelling of 11715285 in words is "eleven million, seven hundred fifteen thousand, two hundred eighty-five".