11228651 has 4 divisors (see below), whose sum is σ = 12832752. Its totient is φ = 9624552.

The previous prime is 11228627. The next prime is 11228663. The reversal of 11228651 is 15682211.

11228651 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-11228651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11228651.

It is not an unprimeable number, because it can be changed into a prime (11228611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802040 + ... + 802053.

It is an arithmetic number, because the mean of its divisors is an integer number (3208188).

Almost surely, 2^11228651 is an apocalyptic number.

11228651 is a deficient number, since it is larger than the sum of its proper divisors (1604101).

11228651 is an equidigital number, since it uses as much as digits as its factorization.

11228651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604100.

The product of its digits is 960, while the sum is 26.

The square root of 11228651 is about 3350.9179339399. The cubic root of 11228651 is about 223.9284090414.

The spelling of 11228651 in words is "eleven million, two hundred twenty-eight thousand, six hundred fifty-one".