122135538 has 24 divisors (see below), whose sum is σ = 284152752. Its totient is φ = 34895784.

The previous prime is 122135521. The next prime is 122135551. The reversal of 122135538 is 835531221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207420 + ... + 208007.

It is an arithmetic number, because the mean of its divisors is an integer number (11839698).

Almost surely, 2^122135538 is an apocalyptic number.

122135538 is an abundant number, since it is smaller than the sum of its proper divisors (162017214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122135538 is a wasteful number, since it uses less digits than its factorization.

122135538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415446 (or 415439 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 122135538 is about 11051.4948310172. The cubic root of 122135538 is about 496.1511663115.

Adding to 122135538 its reverse (835531221), we get a palindrome (957666759).

The spelling of 122135538 in words is "one hundred twenty-two million, one hundred thirty-five thousand, five hundred thirty-eight".