11451229 has 2 divisors, whose sum is σ = 11451230. Its totient is φ = 11451228.

The previous prime is 11451227. The next prime is 11451257. The reversal of 11451229 is 92215411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7166329 + 4284900 = 2677^2 + 2070^2 .

It is an emirp because it is prime and its reverse (92215411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11451229 - 2¹ = 11451227 is a prime.

It is a super-2 number, since 2×11451229² = 262261291220882, which contains 22 as substring.

Together with 11451227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11451227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5725614 + 5725615.

It is an arithmetic number, because the mean of its divisors is an integer number (5725615).

Almost surely, 2^11451229 is an apocalyptic number.

It is an amenable number.

11451229 is a deficient number, since it is larger than the sum of its proper divisors (1).

11451229 is an equidigital number, since it uses as much as digits as its factorization.

11451229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 11451229 is about 3383.9664596447. The cubic root of 11451229 is about 225.3983330704.

The spelling of 11451229 in words is "eleven million, four hundred fifty-one thousand, two hundred twenty-nine".