82515163 has 2 divisors, whose sum is σ = 82515164. Its totient is φ = 82515162.

The previous prime is 82515109. The next prime is 82515187. The reversal of 82515163 is 36151528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82515163 - 2¹³ = 82506971 is a prime.

It is not a weakly prime, because it can be changed into another prime (82513163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41257581 + 41257582.

It is an arithmetic number, because the mean of its divisors is an integer number (41257582).

Almost surely, 2^82515163 is an apocalyptic number.

82515163 is a deficient number, since it is larger than the sum of its proper divisors (1).

82515163 is an equidigital number, since it uses as much as digits as its factorization.

82515163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The square root of 82515163 is about 9083.7857196215. The cubic root of 82515163 is about 435.3560532257.

Subtracting from 82515163 its reverse (36151528), we obtain a triangular number (46363635 = T₉₆₂₉).

The spelling of 82515163 in words is "eighty-two million, five hundred fifteen thousand, one hundred sixty-three".