145173143 has 2 divisors, whose sum is σ = 145173144. Its totient is φ = 145173142.

The previous prime is 145173131. The next prime is 145173157. The reversal of 145173143 is 341371541.

145173143 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 is a cyclic number.

It is not a de Polignac number, because 145173143 - 2¹⁰ = 145172119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145173173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72586571 + 72586572.

It is an arithmetic number, because the mean of its divisors is an integer number (72586572).

Almost surely, 2^145173143 is an apocalyptic number.

145173143 is a deficient number, since it is larger than the sum of its proper divisors (1).

145173143 is an equidigital number, since it uses as much as digits as its factorization.

145173143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 145173143 is about 12048.7818056433. The cubic root of 145173143 is about 525.5678125707.

The spelling of 145173143 in words is "one hundred forty-five million, one hundred seventy-three thousand, one hundred forty-three".