82182013 has 8 divisors (see below), whose sum is σ = 86931648. Its totient is φ = 77530464.

The previous prime is 82182007. The next prime is 82182017. The reversal of 82182013 is 31028128.

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

It is a cyclic number.

It is not a de Polignac number, because 82182013 - 2⁹ = 82181501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82182017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22795 + ... + 26152.

It is an arithmetic number, because the mean of its divisors is an integer number (10866456).

Almost surely, 2^82182013 is an apocalyptic number.

It is an amenable number.

82182013 is a deficient number, since it is larger than the sum of its proper divisors (4749635).

82182013 is a wasteful number, since it uses less digits than its factorization.

82182013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49043.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 82182013 is about 9065.4295540807. The cubic root of 82182013 is about 434.7693549831.

The spelling of 82182013 in words is "eighty-two million, one hundred eighty-two thousand, thirteen".