1129967631 has 64 divisors (see below), whose sum is σ = 1859827200. Its totient is φ = 677660256.

The previous prime is 1129967623. The next prime is 1129967653. The reversal of 1129967631 is 1367699211.

1129967631 is a `hidden beast` number, since 1 + 1 + 2 + 9 + 9 + 6 + 7 + 631 = 666.

It is not a de Polignac number, because 1129967631 - 2³ = 1129967623 is a prime.

It is a super-3 number, since 3×1129967631³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129967681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2550496 + ... + 2550938.

It is an arithmetic number, because the mean of its divisors is an integer number (29059800).

Almost surely, 2^1129967631 is an apocalyptic number.

1129967631 is a deficient number, since it is larger than the sum of its proper divisors (729859569).

1129967631 is an equidigital number, since it uses as much as digits as its factorization.

1129967631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 502 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 1129967631 is about 33614.9911646575. The cubic root of 1129967631 is about 1041.5704918083.

The spelling of 1129967631 in words is "one billion, one hundred twenty-nine million, nine hundred sixty-seven thousand, six hundred thirty-one".