2159621339 has 16 divisors (see below), whose sum is σ = 2300140800. Its totient is φ = 2021884704.

The previous prime is 2159621327. The next prime is 2159621357. The reversal of 2159621339 is 9331269512.

It is a cyclic number.

It is not a de Polignac number, because 2159621339 - 2⁴ = 2159621323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2159621296 and 2159621305.

It is not an unprimeable number, because it can be changed into a prime (2159621389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033754 + ... + 1035840.

It is an arithmetic number, because the mean of its divisors is an integer number (143758800).

Almost surely, 2^2159621339 is an apocalyptic number.

2159621339 is a deficient number, since it is larger than the sum of its proper divisors (140519461).

2159621339 is a wasteful number, since it uses less digits than its factorization.

2159621339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722.

The product of its digits is 87480, while the sum is 41.

The square root of 2159621339 is about 46471.7262321941. The cubic root of 2159621339 is about 1292.5852725311.

The spelling of 2159621339 in words is "two billion, one hundred fifty-nine million, six hundred twenty-one thousand, three hundred thirty-nine".