82319515 has 8 divisors (see below), whose sum is σ = 98836128. Its totient is φ = 65820480.

The previous prime is 82319509. The next prime is 82319537. The reversal of 82319515 is 51591328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82319515 - 2¹¹ = 82317467 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10519 + ... + 16591.

It is an arithmetic number, because the mean of its divisors is an integer number (12354516).

Almost surely, 2^82319515 is an apocalyptic number.

82319515 is a deficient number, since it is larger than the sum of its proper divisors (16516613).

82319515 is a wasteful number, since it uses less digits than its factorization.

82319515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8789.

The product of its digits is 10800, while the sum is 34.

The square root of 82319515 is about 9073.0102501871. The cubic root of 82319515 is about 435.0116965191.

The spelling of 82319515 in words is "eighty-two million, three hundred nineteen thousand, five hundred fifteen".