145536173 has 2 divisors, whose sum is σ = 145536174. Its totient is φ = 145536172.

The previous prime is 145536169. The next prime is 145536187. The reversal of 145536173 is 371635541.

145536173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142157929 + 3378244 = 11923^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 145536173 - 2² = 145536169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145536163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72768086 + 72768087.

It is an arithmetic number, because the mean of its divisors is an integer number (72768087).

Almost surely, 2^145536173 is an apocalyptic number.

It is an amenable number.

145536173 is a deficient number, since it is larger than the sum of its proper divisors (1).

145536173 is an equidigital number, since it uses as much as digits as its factorization.

145536173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 145536173 is about 12063.8374077240. The cubic root of 145536173 is about 526.0055383091.

The spelling of 145536173 in words is "one hundred forty-five million, five hundred thirty-six thousand, one hundred seventy-three".