11226557 has 4 divisors (see below), whose sum is σ = 11588736. Its totient is φ = 10864380.

The previous prime is 11226541. The next prime is 11226563. The reversal of 11226557 is 75562211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11226557 - 2⁴ = 11226541 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 (11226517) 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, 181043 + ... + 181104.

It is an arithmetic number, because the mean of its divisors is an integer number (2897184).

Almost surely, 2^11226557 is an apocalyptic number.

It is an amenable number.

11226557 is a deficient number, since it is larger than the sum of its proper divisors (362179).

11226557 is an equidigital number, since it uses as much as digits as its factorization.

11226557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362178.

The product of its digits is 4200, while the sum is 29.

The square root of 11226557 is about 3350.6054676730. The cubic root of 11226557 is about 223.9144882466.

Adding to 11226557 its reverse (75562211), we get a palindrome (86788768).

The spelling of 11226557 in words is "eleven million, two hundred twenty-six thousand, five hundred fifty-seven".