143501 has 2 divisors, whose sum is σ = 143502. Its totient is φ = 143500.

The previous prime is 143489. The next prime is 143503. The reversal of 143501 is 105341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90601 + 52900 = 301^2 + 230^2 .

It is an emirp because it is prime and its reverse (105341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143501 is a prime.

It is a Sophie Germain prime.

Together with 143503, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143501.

It is not a weakly prime, because it can be changed into another prime (143503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71750 + 71751.

It is an arithmetic number, because the mean of its divisors is an integer number (71751).

2¹⁴³⁵⁰¹ is an apocalyptic number.

It is an amenable number.

143501 is a deficient number, since it is larger than the sum of its proper divisors (1).

143501 is an equidigital number, since it uses as much as digits as its factorization.

143501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 143501 is about 378.8152584044. The cubic root of 143501 is about 52.3542138359.

Adding to 143501 its reverse (105341), we get a palindrome (248842).

The spelling of 143501 in words is "one hundred forty-three thousand, five hundred one".