1129059831 has 8 divisors (see below), whose sum is σ = 1506118384. Its totient is φ = 752353920.

The previous prime is 1129059817. The next prime is 1129059859. The reversal of 1129059831 is 1389509211.

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

It is not a de Polignac number, because 1129059831 - 2²⁵ = 1095505399 is a prime.

It is a super-2 number, since 2×1129059831² = 2549552203955497122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129059831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129059031) 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, 80596 + ... + 93561.

It is an arithmetic number, because the mean of its divisors is an integer number (188264798).

Almost surely, 2^1129059831 is an apocalyptic number.

1129059831 is a deficient number, since it is larger than the sum of its proper divisors (377058553).

1129059831 is a wasteful number, since it uses less digits than its factorization.

1129059831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176321.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 1129059831 is about 33601.4855475171. The cubic root of 1129059831 is about 1041.2914894162.

The spelling of 1129059831 in words is "one billion, one hundred twenty-nine million, fifty-nine thousand, eight hundred thirty-one".