82141649 has 2 divisors, whose sum is σ = 82141650. Its totient is φ = 82141648.

The previous prime is 82141643. The next prime is 82141673. The reversal of 82141649 is 94614128.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 29506624 = 7255^2 + 5432^2 .

It is a cyclic number.

It is not a de Polignac number, because 82141649 - 2²⁴ = 65364433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82141643) 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, 41070824 + 41070825.

It is an arithmetic number, because the mean of its divisors is an integer number (41070825).

Almost surely, 2^82141649 is an apocalyptic number.

It is an amenable number.

82141649 is a deficient number, since it is larger than the sum of its proper divisors (1).

82141649 is an equidigital number, since it uses as much as digits as its factorization.

82141649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 35.

The square root of 82141649 is about 9063.2030210075. The cubic root of 82141649 is about 434.6981638003.

The spelling of 82141649 in words is "eighty-two million, one hundred forty-one thousand, six hundred forty-nine".