1129298869 has 8 divisors (see below), whose sum is σ = 1149791328. Its totient is φ = 1108913520.

The previous prime is 1129298861. The next prime is 1129298921. The reversal of 1129298869 is 9688929211.

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 1129298869 - 2³ = 1129298861 is a prime.

It is a super-2 number, since 2×1129298869² = 2550631871049358322, 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 (1129298861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5347 + ... + 47824.

It is an arithmetic number, because the mean of its divisors is an integer number (143723916).

Almost surely, 2^1129298869 is an apocalyptic number.

It is an amenable number.

1129298869 is a deficient number, since it is larger than the sum of its proper divisors (20492459).

1129298869 is an equidigital number, since it uses as much as digits as its factorization.

1129298869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53555.

The product of its digits is 1119744, while the sum is 55.

The square root of 1129298869 is about 33605.0423151050. The cubic root of 1129298869 is about 1041.3649696294.

The spelling of 1129298869 in words is "one billion, one hundred twenty-nine million, two hundred ninety-eight thousand, eight hundred sixty-nine".