82915229 has 2 divisors, whose sum is σ = 82915230. Its totient is φ = 82915228.

The previous prime is 82915213. The next prime is 82915331. The reversal of 82915229 is 92251928.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62647225 + 20268004 = 7915^2 + 4502^2 .

It is a cyclic number.

It is not a de Polignac number, because 82915229 - 2⁴ = 82915213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82915192 and 82915201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82912229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41457614 + 41457615.

It is an arithmetic number, because the mean of its divisors is an integer number (41457615).

Almost surely, 2^82915229 is an apocalyptic number.

It is an amenable number.

82915229 is a deficient number, since it is larger than the sum of its proper divisors (1).

82915229 is an equidigital number, since it uses as much as digits as its factorization.

82915229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 82915229 is about 9105.7799775747. The cubic root of 82915229 is about 436.0585117023.

The spelling of 82915229 in words is "eighty-two million, nine hundred fifteen thousand, two hundred twenty-nine".