122135543 has 8 divisors (see below), whose sum is σ = 127744128. Its totient is φ = 116551864.

The previous prime is 122135521. The next prime is 122135551. The reversal of 122135543 is 345531221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122135543 - 2¹² = 122131447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122135593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4196 + ... + 16182.

It is an arithmetic number, because the mean of its divisors is an integer number (15968016).

Almost surely, 2^122135543 is an apocalyptic number.

122135543 is a deficient number, since it is larger than the sum of its proper divisors (5608585).

122135543 is a wasteful number, since it uses less digits than its factorization.

122135543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12453.

The product of its digits is 3600, while the sum is 26.

The square root of 122135543 is about 11051.4950572309. The cubic root of 122135543 is about 496.1511730820.

Adding to 122135543 its reverse (345531221), we get a palindrome (467666764).

The spelling of 122135543 in words is "one hundred twenty-two million, one hundred thirty-five thousand, five hundred forty-three".