82041013 has 4 divisors (see below), whose sum is σ = 82169248. Its totient is φ = 81912780.

The previous prime is 82040999. The next prime is 82041017. The reversal of 82041013 is 31014028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82041013 - 2⁹ = 82040501 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 (82041017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63153 + ... + 64438.

It is an arithmetic number, because the mean of its divisors is an integer number (20542312).

Almost surely, 2^82041013 is an apocalyptic number.

It is an amenable number.

82041013 is a deficient number, since it is larger than the sum of its proper divisors (128235).

82041013 is a wasteful number, since it uses less digits than its factorization.

82041013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128234.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 82041013 is about 9057.6494191374. The cubic root of 82041013 is about 434.5205674880.

The spelling of 82041013 in words is "eighty-two million, forty-one thousand, thirteen".