43252165071173 has 2 divisors, whose sum is σ = 43252165071174. Its totient is φ = 43252165071172.

The previous prime is 43252165071163. The next prime is 43252165071221. The reversal of 43252165071173 is 37117056125234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41639879692609 + 1612285378564 = 6452897^2 + 1269758^2 .

It is a cyclic number.

It is not a de Polignac number, because 43252165071173 - 2¹² = 43252165067077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43252165071133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21626082535586 + 21626082535587.

It is an arithmetic number, because the mean of its divisors is an integer number (21626082535587).

Almost surely, 2^{43252165071173} is an apocalyptic number.

It is an amenable number.

43252165071173 is a deficient number, since it is larger than the sum of its proper divisors (1).

43252165071173 is an equidigital number, since it uses as much as digits as its factorization.

43252165071173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 43252165071173 in words is "forty-three trillion, two hundred fifty-two billion, one hundred sixty-five million, seventy-one thousand, one hundred seventy-three".