143143541 has 4 divisors (see below), whose sum is σ = 144410412. Its totient is φ = 141876672.

The previous prime is 143143501. The next prime is 143143547. The reversal of 143143541 is 145341341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145341341 = 661 ⋅219881.

It can be written as a sum of positive squares in 2 ways, for example, as 37773316 + 105370225 = 6146^2 + 10265^2 .

It is a cyclic number.

It is not a de Polignac number, because 143143541 - 2¹⁸ = 142881397 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 143143541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143143547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633266 + ... + 633491.

It is an arithmetic number, because the mean of its divisors is an integer number (36102603).

Almost surely, 2^143143541 is an apocalyptic number.

It is an amenable number.

143143541 is a deficient number, since it is larger than the sum of its proper divisors (1266871).

143143541 is a wasteful number, since it uses less digits than its factorization.

143143541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266870.

The product of its digits is 2880, while the sum is 26.

The square root of 143143541 is about 11964.2609884606. The cubic root of 143143541 is about 523.1070648371.

Adding to 143143541 its reverse (145341341), we get a palindrome (288484882).

The spelling of 143143541 in words is "one hundred forty-three million, one hundred forty-three thousand, five hundred forty-one".