82136715 has 16 divisors (see below), whose sum is σ = 138336000. Its totient is φ = 41500512.

The previous prime is 82136713. The next prime is 82136723. The reversal of 82136715 is 51763128.

It is not a de Polignac number, because 82136715 - 2¹ = 82136713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82136711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143815 + ... + 144384.

It is an arithmetic number, because the mean of its divisors is an integer number (8646000).

Almost surely, 2^82136715 is an apocalyptic number.

82136715 is a deficient number, since it is larger than the sum of its proper divisors (56199285).

82136715 is a wasteful number, since it uses less digits than its factorization.

82136715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288226.

The product of its digits is 10080, while the sum is 33.

The square root of 82136715 is about 9062.9308173460. The cubic root of 82136715 is about 434.6894599588.

The spelling of 82136715 in words is "eighty-two million, one hundred thirty-six thousand, seven hundred fifteen".