143513 has 2 divisors, whose sum is σ = 143514. Its totient is φ = 143512.

The previous prime is 143509. The next prime is 143519. The reversal of 143513 is 315341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120409 + 23104 = 347^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 143513 - 2² = 143509 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 143491 and 143500.

It is not a weakly prime, because it can be changed into another prime (143519) 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, 71756 + 71757.

It is an arithmetic number, because the mean of its divisors is an integer number (71757).

2¹⁴³⁵¹³ is an apocalyptic number.

It is an amenable number.

143513 is a deficient number, since it is larger than the sum of its proper divisors (1).

143513 is an equidigital number, since it uses as much as digits as its factorization.

143513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 17.

The square root of 143513 is about 378.8310969284. The cubic root of 143513 is about 52.3556731360.

Adding to 143513 its reverse (315341), we get a palindrome (458854).

It can be divided in two parts, 143 and 513, that added together give a palindrome (656).

The spelling of 143513 in words is "one hundred forty-three thousand, five hundred thirteen".