11651227 has 4 divisors (see below), whose sum is σ = 13315696. Its totient is φ = 9986760.

The previous prime is 11651221. The next prime is 11651231. The reversal of 11651227 is 72215611.

11651227 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 72215611 = 13 ⋅5555047.

It is not a de Polignac number, because 11651227 - 2¹¹ = 11649179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11651221) 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, 832224 + ... + 832237.

It is an arithmetic number, because the mean of its divisors is an integer number (3328924).

Almost surely, 2^11651227 is an apocalyptic number.

11651227 is a deficient number, since it is larger than the sum of its proper divisors (1664469).

11651227 is an equidigital number, since it uses as much as digits as its factorization.

11651227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664468.

The product of its digits is 840, while the sum is 25.

The square root of 11651227 is about 3413.3893712848. The cubic root of 11651227 is about 226.7029759692.

Adding to 11651227 its reverse (72215611), we get a palindrome (83866838).

The spelling of 11651227 in words is "eleven million, six hundred fifty-one thousand, two hundred twenty-seven".