143573 has 2 divisors, whose sum is σ = 143574. Its totient is φ = 143572.

The previous prime is 143569. The next prime is 143593. The reversal of 143573 is 375341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142129 + 1444 = 377^2 + 38^2 .

It is an emirp because it is prime and its reverse (375341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143573 - 2² = 143569 is a prime.

It is a super-2 number, since 2×143573² = 41226412658, which contains 22 as substring.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71786 + 71787.

It is an arithmetic number, because the mean of its divisors is an integer number (71787).

2¹⁴³⁵⁷³ is an apocalyptic number.

It is an amenable number.

143573 is a deficient number, since it is larger than the sum of its proper divisors (1).

143573 is an equidigital number, since it uses as much as digits as its factorization.

143573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 23.

The square root of 143573 is about 378.9102796177. The cubic root of 143573 is about 52.3629684163.

It can be divided in two parts, 14357 and 3, that multiplied together give a triangular number (43071 = T₂₉₃).

The spelling of 143573 in words is "one hundred forty-three thousand, five hundred seventy-three".