143585441 has 2 divisors, whose sum is σ = 143585442. Its totient is φ = 143585440.

The previous prime is 143585401. The next prime is 143585503. The reversal of 143585441 is 144585341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103958416 + 39627025 = 10196^2 + 6295^2 .

It is a cyclic number.

It is not a de Polignac number, because 143585441 - 2²² = 139391137 is a prime.

It is not a weakly prime, because it can be changed into another prime (143585401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71792720 + 71792721.

It is an arithmetic number, because the mean of its divisors is an integer number (71792721).

Almost surely, 2^143585441 is an apocalyptic number.

It is an amenable number.

143585441 is a deficient number, since it is larger than the sum of its proper divisors (1).

143585441 is an equidigital number, since it uses as much as digits as its factorization.

143585441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 35.

The square root of 143585441 is about 11982.7142584641. The cubic root of 143585441 is about 523.6448083828.

The spelling of 143585441 in words is "one hundred forty-three million, five hundred eighty-five thousand, four hundred forty-one".