135111242 has 16 divisors (see below), whose sum is σ = 243810240. Its totient is φ = 54857088.

The previous prime is 135111227. The next prime is 135111259. The reversal of 135111242 is 242111531.

It is a super-5 number, since 5×135111242⁵ (a number of 42 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253703 + ... + 254234.

It is an arithmetic number, because the mean of its divisors is an integer number (15238140).

Almost surely, 2^135111242 is an apocalyptic number.

135111242 is a deficient number, since it is larger than the sum of its proper divisors (108698998).

135111242 is a wasteful number, since it uses less digits than its factorization.

135111242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507965.

The product of its digits is 240, while the sum is 20.

The square root of 135111242 is about 11623.7361463516. The cubic root of 135111242 is about 513.1336498695.

Adding to 135111242 its reverse (242111531), we get a palindrome (377222773).

The spelling of 135111242 in words is "one hundred thirty-five million, one hundred eleven thousand, two hundred forty-two".