1289034029 has 4 divisors (see below), whose sum is σ = 1301081184. Its totient is φ = 1276986876.

The previous prime is 1289034007. The next prime is 1289034031. The reversal of 1289034029 is 9204309821.

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 a de Polignac number, because none of the positive numbers 2^k-1289034029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1289033983 and 1289034001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289034059) 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, 6023417 + ... + 6023630.

It is an arithmetic number, because the mean of its divisors is an integer number (325270296).

Almost surely, 2^1289034029 is an apocalyptic number.

It is an amenable number.

1289034029 is a deficient number, since it is larger than the sum of its proper divisors (12047155).

1289034029 is a wasteful number, since it uses less digits than its factorization.

1289034029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12047154.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1289034029 is about 35903.1200454779. The cubic root of 1289034029 is about 1088.3154488849.

The spelling of 1289034029 in words is "one billion, two hundred eighty-nine million, thirty-four thousand, twenty-nine".