215112329 has 2 divisors, whose sum is σ = 215112330. Its totient is φ = 215112328.

The previous prime is 215112301. The next prime is 215112347. The reversal of 215112329 is 923211512.

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., 129049600 + 86062729 = 11360^2 + 9277^2 .

It is a cyclic number.

It is not a de Polignac number, because 215112329 - 2²⁴ = 198335113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215112298 and 215112307.

It is not a weakly prime, because it can be changed into another prime (215112389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107556164 + 107556165.

It is an arithmetic number, because the mean of its divisors is an integer number (107556165).

Almost surely, 2^215112329 is an apocalyptic number.

It is an amenable number.

215112329 is a deficient number, since it is larger than the sum of its proper divisors (1).

215112329 is an equidigital number, since it uses as much as digits as its factorization.

215112329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 215112329 is about 14666.7081855473. The cubic root of 215112329 is about 599.1769539155.

The spelling of 215112329 in words is "two hundred fifteen million, one hundred twelve thousand, three hundred twenty-nine".