143242541 has 6 divisors (see below), whose sum is σ = 155108970. Its totient is φ = 132223728.

The previous prime is 143242531. The next prime is 143242549. The reversal of 143242541 is 145242341.

It can be written as a sum of positive squares in 3 ways, for example, as 8008900 + 135233641 = 2830^2 + 11629^2 .

It is not a de Polignac number, because 143242541 - 2¹⁰ = 143241517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143242541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143242549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 423626 + ... + 423963.

It is an arithmetic number, because the mean of its divisors is an integer number (25851495).

Almost surely, 2^143242541 is an apocalyptic number.

It is an amenable number.

143242541 is a deficient number, since it is larger than the sum of its proper divisors (11866429).

143242541 is an equidigital number, since it uses as much as digits as its factorization.

143242541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847615 (or 847602 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 143242541 is about 11968.3975953341. The cubic root of 143242541 is about 523.2276330086.

Adding to 143242541 its reverse (145242341), we get a palindrome (288484882).

The spelling of 143242541 in words is "one hundred forty-three million, two hundred forty-two thousand, five hundred forty-one".