82145827 has 2 divisors, whose sum is σ = 82145828. Its totient is φ = 82145826.

The previous prime is 82145771. The next prime is 82145831. The reversal of 82145827 is 72854128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82145827 - 2²³ = 73757219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82145027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41072913 + 41072914.

It is an arithmetic number, because the mean of its divisors is an integer number (41072914).

Almost surely, 2^82145827 is an apocalyptic number.

82145827 is a deficient number, since it is larger than the sum of its proper divisors (1).

82145827 is an equidigital number, since it uses as much as digits as its factorization.

82145827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35840, while the sum is 37.

The square root of 82145827 is about 9063.4335105411. The cubic root of 82145827 is about 434.7055337446.

It can be divided in two parts, 8214 and 5827, that added together give a palindrome (14041).

The spelling of 82145827 in words is "eighty-two million, one hundred forty-five thousand, eight hundred twenty-seven".