8145773 has 2 divisors, whose sum is σ = 8145774. Its totient is φ = 8145772.

The previous prime is 8145743. The next prime is 8145811. The reversal of 8145773 is 3775418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7828804 + 316969 = 2798^2 + 563^2 .

It is a cyclic number.

It is not a de Polignac number, because 8145773 - 2¹² = 8141677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8145713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4072886 + 4072887.

It is an arithmetic number, because the mean of its divisors is an integer number (4072887).

Almost surely, 2^8145773 is an apocalyptic number.

It is an amenable number.

8145773 is a deficient number, since it is larger than the sum of its proper divisors (1).

8145773 is an equidigital number, since it uses as much as digits as its factorization.

8145773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 35.

The square root of 8145773 is about 2854.0800619464. The cubic root of 8145773 is about 201.2074704055.

It can be divided in two parts, 81 and 45773, that added together give a palindrome (45854).

The spelling of 8145773 in words is "eight million, one hundred forty-five thousand, seven hundred seventy-three".