82719135 has 12 divisors (see below), whose sum is σ = 143379912. Its totient is φ = 44116848.

The previous prime is 82719113. The next prime is 82719137. The reversal of 82719135 is 53191728.

It is not a de Polignac number, because 82719135 - 2²⁰ = 81670559 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 82719135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82719137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 919057 + ... + 919146.

It is an arithmetic number, because the mean of its divisors is an integer number (11948326).

Almost surely, 2^82719135 is an apocalyptic number.

82719135 is a deficient number, since it is larger than the sum of its proper divisors (60660777).

82719135 is a wasteful number, since it uses less digits than its factorization.

82719135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838214 (or 1838211 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 82719135 is about 9095.0060472767. The cubic root of 82719135 is about 435.7144817956.

The spelling of 82719135 in words is "eighty-two million, seven hundred nineteen thousand, one hundred thirty-five".