1129296231 has 24 divisors (see below), whose sum is σ = 1887841280. Its totient is φ = 637140816.

The previous prime is 1129296227. The next prime is 1129296239. The reversal of 1129296231 is 1326929211.

1129296231 is a `hidden beast` number, since 1 + 1 + 2 + 9 + 29 + 623 + 1 = 666.

It is not a de Polignac number, because 1129296231 - 2² = 1129296227 is a prime.

It is a super-2 number, since 2×1129296231² = 2550619954701610722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129296239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108475 + ... + 118428.

Almost surely, 2^1129296231 is an apocalyptic number.

1129296231 is a deficient number, since it is larger than the sum of its proper divisors (758545049).

1129296231 is a wasteful number, since it uses less digits than its factorization.

1129296231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226995 (or 226992 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 1129296231 is about 33605.0030650199. The cubic root of 1129296231 is about 1041.3641587656.

The spelling of 1129296231 in words is "one billion, one hundred twenty-nine million, two hundred ninety-six thousand, two hundred thirty-one".