142211543 has 2 divisors, whose sum is σ = 142211544. Its totient is φ = 142211542.

The previous prime is 142211527. The next prime is 142211549. The reversal of 142211543 is 345112241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142211543 - 2⁴ = 142211527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142211549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71105771 + 71105772.

It is an arithmetic number, because the mean of its divisors is an integer number (71105772).

Almost surely, 2^142211543 is an apocalyptic number.

142211543 is a deficient number, since it is larger than the sum of its proper divisors (1).

142211543 is an equidigital number, since it uses as much as digits as its factorization.

142211543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 142211543 is about 11925.2481315904. The cubic root of 142211543 is about 521.9692869096.

Adding to 142211543 its reverse (345112241), we get a palindrome (487323784).

The spelling of 142211543 in words is "one hundred forty-two million, two hundred eleven thousand, five hundred forty-three".