11271285 has 32 divisors (see below), whose sum is σ = 20736000. Its totient is φ = 5802048.

The previous prime is 11271277. The next prime is 11271319. The reversal of 11271285 is 58217211.

It is not a de Polignac number, because 11271285 - 2³ = 11271277 is a prime.

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

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2476 + ... + 5354.

It is an arithmetic number, because the mean of its divisors is an integer number (648000).

Almost surely, 2^11271285 is an apocalyptic number.

11271285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11271285 is a deficient number, since it is larger than the sum of its proper divisors (9464715).

11271285 is a wasteful number, since it uses less digits than its factorization.

11271285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922 (or 2916 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 11271285 is about 3357.2734473081. The cubic root of 11271285 is about 224.2114619293.

Adding to 11271285 its reverse (58217211), we get a palindrome (69488496).

The spelling of 11271285 in words is "eleven million, two hundred seventy-one thousand, two hundred eighty-five".