1129630227 has 24 divisors (see below), whose sum is σ = 1658180160. Its totient is φ = 683535600.

The previous prime is 1129630223. The next prime is 1129630241. The reversal of 1129630227 is 7220369211.

It is not a de Polignac number, because 1129630227 - 2² = 1129630223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1129630223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266152 + ... + 270362.

It is an arithmetic number, because the mean of its divisors is an integer number (69090840).

Almost surely, 2^1129630227 is an apocalyptic number.

1129630227 is a deficient number, since it is larger than the sum of its proper divisors (528549933).

1129630227 is a wasteful number, since it uses less digits than its factorization.

1129630227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975 (or 4964 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1129630227 is about 33609.9721362574. The cubic root of 1129630227 is about 1041.4668118370.

Adding to 1129630227 its reverse (7220369211), we get a palindrome (8349999438).

The spelling of 1129630227 in words is "one billion, one hundred twenty-nine million, six hundred thirty thousand, two hundred twenty-seven".