122143543 has 2 divisors, whose sum is σ = 122143544. Its totient is φ = 122143542.

The previous prime is 122143531. The next prime is 122143577. The reversal of 122143543 is 345341221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122143543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122153543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61071771 + 61071772.

It is an arithmetic number, because the mean of its divisors is an integer number (61071772).

Almost surely, 2^122143543 is an apocalyptic number.

122143543 is a deficient number, since it is larger than the sum of its proper divisors (1).

122143543 is an equidigital number, since it uses as much as digits as its factorization.

122143543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 122143543 is about 11051.8569932840. The cubic root of 122143543 is about 496.1620056446.

Adding to 122143543 its reverse (345341221), we get a palindrome (467484764).

The spelling of 122143543 in words is "one hundred twenty-two million, one hundred forty-three thousand, five hundred forty-three".