122125543 has 2 divisors, whose sum is σ = 122125544. Its totient is φ = 122125542.

The previous prime is 122125529. The next prime is 122125573. The reversal of 122125543 is 345521221.

It is a weak prime.

It is an emirp because it is prime and its reverse (345521221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122125543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122125513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61062771 + 61062772.

It is an arithmetic number, because the mean of its divisors is an integer number (61062772).

Almost surely, 2^122125543 is an apocalyptic number.

122125543 is a deficient number, since it is larger than the sum of its proper divisors (1).

122125543 is an equidigital number, since it uses as much as digits as its factorization.

122125543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 25.

The square root of 122125543 is about 11051.0426204951. The cubic root of 122125543 is about 496.1376317136.

Adding to 122125543 its reverse (345521221), we get a palindrome (467646764).

The spelling of 122125543 in words is "one hundred twenty-two million, one hundred twenty-five thousand, five hundred forty-three".