82162573 has 4 divisors (see below), whose sum is σ = 82706848. Its totient is φ = 81618300.

The previous prime is 82162543. The next prime is 82162603. The reversal of 82162573 is 37526128.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (82162543) and next prime (82162603).

It is a cyclic number.

It is not a de Polignac number, because 82162573 - 2²¹ = 80065421 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 (82162543) 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, 271911 + ... + 272212.

It is an arithmetic number, because the mean of its divisors is an integer number (20676712).

Almost surely, 2^82162573 is an apocalyptic number.

It is an amenable number.

82162573 is a deficient number, since it is larger than the sum of its proper divisors (544275).

82162573 is a wasteful number, since it uses less digits than its factorization.

82162573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544274.

The product of its digits is 20160, while the sum is 34.

The square root of 82162573 is about 9064.3572855443. The cubic root of 82162573 is about 434.7350709897.

The spelling of 82162573 in words is "eighty-two million, one hundred sixty-two thousand, five hundred seventy-three".