82195573 has 2 divisors, whose sum is σ = 82195574. Its totient is φ = 82195572.

The previous prime is 82195571. The next prime is 82195613. The reversal of 82195573 is 37559128.

It is an a-pointer prime, because the next prime (82195613) can be obtained adding 82195573 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67272804 + 14922769 = 8202^2 + 3863^2 .

It is a cyclic number.

It is not a de Polignac number, because 82195573 - 2¹ = 82195571 is a prime.

It is a super-2 number, since 2×82195573² = 13512224441596658, which contains 22 as substring.

Together with 82195571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82195571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41097786 + 41097787.

It is an arithmetic number, because the mean of its divisors is an integer number (41097787).

Almost surely, 2^82195573 is an apocalyptic number.

It is an amenable number.

82195573 is a deficient number, since it is larger than the sum of its proper divisors (1).

82195573 is an equidigital number, since it uses as much as digits as its factorization.

82195573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 82195573 is about 9066.1774193979. The cubic root of 82195573 is about 434.7932659259.

The spelling of 82195573 in words is "eighty-two million, one hundred ninety-five thousand, five hundred seventy-three".