11285421 has 8 divisors (see below), whose sum is σ = 17196864. Its totient is φ = 6448800.

The previous prime is 11285419. The next prime is 11285429. The reversal of 11285421 is 12458211.

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

It is not a de Polignac number, because 11285421 - 2¹ = 11285419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11285391 and 11285400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285429) 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, 268680 + ... + 268721.

It is an arithmetic number, because the mean of its divisors is an integer number (2149608).

Almost surely, 2^11285421 is an apocalyptic number.

It is an amenable number.

11285421 is a deficient number, since it is larger than the sum of its proper divisors (5911443).

11285421 is an equidigital number, since it uses as much as digits as its factorization.

11285421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537411.

The product of its digits is 640, while the sum is 24.

The square root of 11285421 is about 3359.3780674405. The cubic root of 11285421 is about 224.3051551550.

The spelling of 11285421 in words is "eleven million, two hundred eighty-five thousand, four hundred twenty-one".