82445101 has 2 divisors, whose sum is σ = 82445102. Its totient is φ = 82445100.

The previous prime is 82445081. The next prime is 82445113. The reversal of 82445101 is 10154428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74407876 + 8037225 = 8626^2 + 2835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82445101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82445141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41222550 + 41222551.

It is an arithmetic number, because the mean of its divisors is an integer number (41222551).

Almost surely, 2^82445101 is an apocalyptic number.

It is an amenable number.

82445101 is a deficient number, since it is larger than the sum of its proper divisors (1).

82445101 is an equidigital number, since it uses as much as digits as its factorization.

82445101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 82445101 is about 9079.9284688812. The cubic root of 82445101 is about 435.2328009182.

Adding to 82445101 its reverse (10154428), we get a palindrome (92599529).

The spelling of 82445101 in words is "eighty-two million, four hundred forty-five thousand, one hundred one".