2215126829 has 2 divisors, whose sum is σ = 2215126830. Its totient is φ = 2215126828.

The previous prime is 2215126817. The next prime is 2215126867. The reversal of 2215126829 is 9286215122.

It is an a-pointer prime, because the next prime (2215126867) can be obtained adding 2215126829 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1252452100 + 962674729 = 35390^2 + 31027^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215126829 - 2²⁴ = 2198349613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2215126792 and 2215126801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215126889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107563414 + 1107563415.

It is an arithmetic number, because the mean of its divisors is an integer number (1107563415).

Almost surely, 2^2215126829 is an apocalyptic number.

It is an amenable number.

2215126829 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215126829 is an equidigital number, since it uses as much as digits as its factorization.

2215126829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 2215126829 is about 47065.1338997352. The cubic root of 2215126829 is about 1303.5655233021.

The spelling of 2215126829 in words is "two billion, two hundred fifteen million, one hundred twenty-six thousand, eight hundred twenty-nine".