1129145227 has 8 divisors (see below), whose sum is σ = 1293914336. Its totient is φ = 965241792.

The previous prime is 1129145201. The next prime is 1129145257. The reversal of 1129145227 is 7225419211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1129145227 - 2¹⁵ = 1129112459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1129145192 and 1129145201.

It is not an unprimeable number, because it can be changed into a prime (1129145257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213618 + ... + 218839.

It is an arithmetic number, because the mean of its divisors is an integer number (161739292).

Almost surely, 2^1129145227 is an apocalyptic number.

1129145227 is a deficient number, since it is larger than the sum of its proper divisors (164769109).

1129145227 is an equidigital number, since it uses as much as digits as its factorization.

1129145227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432837.

The product of its digits is 10080, while the sum is 34.

The square root of 1129145227 is about 33602.7562411181. The cubic root of 1129145227 is about 1041.3177413129.

The spelling of 1129145227 in words is "one billion, one hundred twenty-nine million, one hundred forty-five thousand, two hundred twenty-seven".