1320289959 has 8 divisors (see below), whose sum is σ = 1760815872. Its totient is φ = 879978680.

The previous prime is 1320289939. The next prime is 1320289967. The reversal of 1320289959 is 9599820231.

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 1320289959 - 2¹¹ = 1320287911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320289939) 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, 38709 + ... + 64334.

It is an arithmetic number, because the mean of its divisors is an integer number (220101984).

Almost surely, 2^1320289959 is an apocalyptic number.

1320289959 is a deficient number, since it is larger than the sum of its proper divisors (440525913).

1320289959 is a wasteful number, since it uses less digits than its factorization.

1320289959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107317.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1320289959 is about 36335.7944594583. The cubic root of 1320289959 is about 1097.0416262738.

The spelling of 1320289959 in words is "one billion, three hundred twenty million, two hundred eighty-nine thousand, nine hundred fifty-nine".