82513286 has 4 divisors (see below), whose sum is σ = 123769932. Its totient is φ = 41256642.

The previous prime is 82513283. The next prime is 82513303. The reversal of 82513286 is 68231528.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82513283) 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, 20628320 + ... + 20628323.

It is an arithmetic number, because the mean of its divisors is an integer number (30942483).

Almost surely, 2^82513286 is an apocalyptic number.

82513286 is a deficient number, since it is larger than the sum of its proper divisors (41256646).

82513286 is a wasteful number, since it uses less digits than its factorization.

82513286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41256645.

The product of its digits is 23040, while the sum is 35.

The square root of 82513286 is about 9083.6824030786. The cubic root of 82513286 is about 435.3527521375.

The spelling of 82513286 in words is "eighty-two million, five hundred thirteen thousand, two hundred eighty-six".