143065541 has 2 divisors, whose sum is σ = 143065542. Its totient is φ = 143065540.

The previous prime is 143065519. The next prime is 143065547. The reversal of 143065541 is 145560341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138532900 + 4532641 = 11770^2 + 2129^2 .

It is a cyclic number.

It is not a de Polignac number, because 143065541 - 2¹⁰ = 143064517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143065547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71532770 + 71532771.

It is an arithmetic number, because the mean of its divisors is an integer number (71532771).

Almost surely, 2^143065541 is an apocalyptic number.

It is an amenable number.

143065541 is a deficient number, since it is larger than the sum of its proper divisors (1).

143065541 is an equidigital number, since it uses as much as digits as its factorization.

143065541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 143065541 is about 11961.0008360505. Note that the first 3 decimals coincide. The cubic root of 143065541 is about 523.0120325728.

The spelling of 143065541 in words is "one hundred forty-three million, sixty-five thousand, five hundred forty-one".