82013019 has 8 divisors (see below), whose sum is σ = 119291712. Its totient is φ = 49704840.

The previous prime is 82013003. The next prime is 82013093. The reversal of 82013019 is 91031028.

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

It is not a de Polignac number, because 82013019 - 2⁴ = 82013003 is a prime.

It is a super-2 number, since 2×82013019² = 13452270570988722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82013019.

It is not an unprimeable number, because it can be changed into a prime (82013119) 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, 1242589 + ... + 1242654.

It is an arithmetic number, because the mean of its divisors is an integer number (14911464).

Almost surely, 2^82013019 is an apocalyptic number.

82013019 is a deficient number, since it is larger than the sum of its proper divisors (37278693).

82013019 is a wasteful number, since it uses less digits than its factorization.

82013019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485257.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 82013019 is about 9056.1039636259. The cubic root of 82013019 is about 434.4711395571.

Subtracting 82013019 from its reverse (91031028), we obtain a square (9018009 = 3003²).

The spelling of 82013019 in words is "eighty-two million, thirteen thousand, nineteen".