82305193 has 4 divisors (see below), whose sum is σ = 82323540. Its totient is φ = 82286848.

The previous prime is 82305191. The next prime is 82305199. The reversal of 82305193 is 39150328.

It is a happy number.

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 24970009 + 57335184 = 4997^2 + 7572^2 .

It is a cyclic number.

It is not a de Polignac number, because 82305193 - 2¹ = 82305191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82305191) 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, 2553 + ... + 13081.

It is an arithmetic number, because the mean of its divisors is an integer number (20580885).

Almost surely, 2^82305193 is an apocalyptic number.

It is an amenable number.

82305193 is a deficient number, since it is larger than the sum of its proper divisors (18347).

82305193 is a wasteful number, since it uses less digits than its factorization.

82305193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18346.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 82305193 is about 9072.2209518949. The cubic root of 82305193 is about 434.9864671881.

The spelling of 82305193 in words is "eighty-two million, three hundred five thousand, one hundred ninety-three".