3129159389 has 2 divisors, whose sum is σ = 3129159390. Its totient is φ = 3129159388.

The previous prime is 3129159377. The next prime is 3129159391. The reversal of 3129159389 is 9839519213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2699633764 + 429525625 = 51958^2 + 20725^2 .

It is an emirp because it is prime and its reverse (9839519213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3129159389 - 2⁸ = 3129159133 is a prime.

Together with 3129159391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3129159359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564579694 + 1564579695.

It is an arithmetic number, because the mean of its divisors is an integer number (1564579695).

Almost surely, 2^3129159389 is an apocalyptic number.

It is an amenable number.

3129159389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3129159389 is an equidigital number, since it uses as much as digits as its factorization.

3129159389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 50.

The square root of 3129159389 is about 55938.8897726796. The cubic root of 3129159389 is about 1462.6572283200.

The spelling of 3129159389 in words is "three billion, one hundred twenty-nine million, one hundred fifty-nine thousand, three hundred eighty-nine".