8145673 has 2 divisors, whose sum is σ = 8145674. Its totient is φ = 8145672.

The previous prime is 8145671. The next prime is 8145689. The reversal of 8145673 is 3765418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6827769 + 1317904 = 2613^2 + 1148^2 .

It is a cyclic number.

It is not a de Polignac number, because 8145673 - 2¹ = 8145671 is a prime.

Together with 8145671, it forms a pair of twin primes.

8145673 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8145671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4072836 + 4072837.

It is an arithmetic number, because the mean of its divisors is an integer number (4072837).

Almost surely, 2^8145673 is an apocalyptic number.

It is an amenable number.

8145673 is a deficient number, since it is larger than the sum of its proper divisors (1).

8145673 is an equidigital number, since it uses as much as digits as its factorization.

8145673 is an odious number, because the sum of its binary digits is odd.

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

The square root of 8145673 is about 2854.0625431129. The cubic root of 8145673 is about 201.2066470406.

It can be divided in two parts, 81 and 45673, that added together give a palindrome (45754).

The spelling of 8145673 in words is "eight million, one hundred forty-five thousand, six hundred seventy-three".