143146243 has 4 divisors (see below), whose sum is σ = 143170600. Its totient is φ = 143121888.

The previous prime is 143146219. The next prime is 143146249. The reversal of 143146243 is 342641341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143146243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143146249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2683 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (35792650).

Almost surely, 2^143146243 is an apocalyptic number.

143146243 is a deficient number, since it is larger than the sum of its proper divisors (24357).

143146243 is an equidigital number, since it uses as much as digits as its factorization.

143146243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24356.

The product of its digits is 6912, while the sum is 28.

The square root of 143146243 is about 11964.3739075641. The cubic root of 143146243 is about 523.1103562335.

Adding to 143146243 its reverse (342641341), we get a palindrome (485787584).

It can be divided in two parts, 1431 and 46243, that added together give a palindrome (47674).

The spelling of 143146243 in words is "one hundred forty-three million, one hundred forty-six thousand, two hundred forty-three".