1129849829 has 4 divisors (see below), whose sum is σ = 1130257440. Its totient is φ = 1129442220.

The previous prime is 1129849817. The next prime is 1129849837. The reversal of 1129849829 is 9289489211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1129849829 - 2²⁴ = 1113072613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129849879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199619 + ... + 205200.

It is an arithmetic number, because the mean of its divisors is an integer number (282564360).

Almost surely, 2^1129849829 is an apocalyptic number.

It is an amenable number.

1129849829 is a deficient number, since it is larger than the sum of its proper divisors (407611).

1129849829 is an equidigital number, since it uses as much as digits as its factorization.

1129849829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407610.

The product of its digits is 746496, while the sum is 53.

The square root of 1129849829 is about 33613.2388948164. The cubic root of 1129849829 is about 1041.5342950926.

The spelling of 1129849829 in words is "one billion, one hundred twenty-nine million, eight hundred forty-nine thousand, eight hundred twenty-nine".