82813105 has 4 divisors (see below), whose sum is σ = 99375732. Its totient is φ = 66250480.

The previous prime is 82813099. The next prime is 82813109. The reversal of 82813105 is 50131828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45064369 + 37748736 = 6713^2 + 6144^2 .

It is not a de Polignac number, because 82813105 - 2¹⁵ = 82780337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82813109) 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, 8281306 + ... + 8281315.

It is an arithmetic number, because the mean of its divisors is an integer number (24843933).

Almost surely, 2^82813105 is an apocalyptic number.

It is an amenable number.

82813105 is a deficient number, since it is larger than the sum of its proper divisors (16562627).

82813105 is a wasteful number, since it uses less digits than its factorization.

82813105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16562626.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 82813105 is about 9100.1706027964. The cubic root of 82813105 is about 435.8794117734.

The spelling of 82813105 in words is "eighty-two million, eight hundred thirteen thousand, one hundred five".