141509 has 2 divisors, whose sum is σ = 141510. Its totient is φ = 141508.

The previous prime is 141499. The next prime is 141511. The reversal of 141509 is 905141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124609 + 16900 = 353^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 141509 - 2¹² = 137413 is a prime.

Together with 141511, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141529) 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, 70754 + 70755.

It is an arithmetic number, because the mean of its divisors is an integer number (70755).

2¹⁴¹⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

141509 is a deficient number, since it is larger than the sum of its proper divisors (1).

141509 is an equidigital number, since it uses as much as digits as its factorization.

141509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 141509 is about 376.1768201259. The cubic root of 141509 is about 52.1108336194.

The spelling of 141509 in words is "one hundred forty-one thousand, five hundred nine".