82515029 has 2 divisors, whose sum is σ = 82515030. Its totient is φ = 82515028.

The previous prime is 82515023. The next prime is 82515047. The reversal of 82515029 is 92051528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69388900 + 13126129 = 8330^2 + 3623^2 .

It is a cyclic number.

It is not a de Polignac number, because 82515029 - 2²⁰ = 81466453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82514986 and 82515004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82515023) 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, 41257514 + 41257515.

It is an arithmetic number, because the mean of its divisors is an integer number (41257515).

Almost surely, 2^82515029 is an apocalyptic number.

It is an amenable number.

82515029 is a deficient number, since it is larger than the sum of its proper divisors (1).

82515029 is an equidigital number, since it uses as much as digits as its factorization.

82515029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 82515029 is about 9083.7783438391. The cubic root of 82515029 is about 435.3558175610.

The spelling of 82515029 in words is "eighty-two million, five hundred fifteen thousand, twenty-nine".