11228351 has 4 divisors (see below), whose sum is σ = 11257032. Its totient is φ = 11199672.

The previous prime is 11228333. The next prime is 11228359. The reversal of 11228351 is 15382211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11228351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11228359) 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, 13745 + ... + 14538.

It is an arithmetic number, because the mean of its divisors is an integer number (2814258).

Almost surely, 2^11228351 is an apocalyptic number.

11228351 is a deficient number, since it is larger than the sum of its proper divisors (28681).

11228351 is an equidigital number, since it uses as much as digits as its factorization.

11228351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28680.

The product of its digits is 480, while the sum is 23.

The square root of 11228351 is about 3350.8731697872. The cubic root of 11228351 is about 223.9264147644.

It can be divided in two parts, 11228 and 351, that multiplied together give a triangular number (3941028 = T₂₈₀₇).

The spelling of 11228351 in words is "eleven million, two hundred twenty-eight thousand, three hundred fifty-one".