2115343129 has 2 divisors, whose sum is σ = 2115343130. Its totient is φ = 2115343128.

The previous prime is 2115343123. The next prime is 2115343151. The reversal of 2115343129 is 9213435112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2105433225 + 9909904 = 45885^2 + 3148^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115343129 - 2¹⁹ = 2114818841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2115343129.

It is not a weakly prime, because it can be changed into another prime (2115343123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057671564 + 1057671565.

It is an arithmetic number, because the mean of its divisors is an integer number (1057671565).

Almost surely, 2^2115343129 is an apocalyptic number.

It is an amenable number.

2115343129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115343129 is an equidigital number, since it uses as much as digits as its factorization.

2115343129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 2115343129 is about 45992.8595436292. The cubic root of 2115343129 is about 1283.6903448780.

The spelling of 2115343129 in words is "two billion, one hundred fifteen million, three hundred forty-three thousand, one hundred twenty-nine".