82132730 has 8 divisors (see below), whose sum is σ = 147838932. Its totient is φ = 32853088.

The previous prime is 82132703. The next prime is 82132741. The reversal of 82132730 is 3723128.

It can be written as a sum of positive squares in 2 ways, for example, as 80766169 + 1366561 = 8987^2 + 1169^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 82132730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106627 + ... + 4106646.

Almost surely, 2^82132730 is an apocalyptic number.

82132730 is a deficient number, since it is larger than the sum of its proper divisors (65706202).

82132730 is a wasteful number, since it uses less digits than its factorization.

82132730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213280.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 82132730 is about 9062.7109630618. The cubic root of 82132730 is about 434.6824299499.

Adding to 82132730 its reverse (3723128), we get a palindrome (85855858).

The spelling of 82132730 in words is "eighty-two million, one hundred thirty-two thousand, seven hundred thirty".