135137111 has 8 divisors (see below), whose sum is σ = 136439424. Its totient is φ = 133839160.

The previous prime is 135137083. The next prime is 135137113. The reversal of 135137111 is 111731531.

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 a de Polignac number, because none of the positive numbers 2^k-135137111 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 (135137113) 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, 115616 + ... + 116778.

It is an arithmetic number, because the mean of its divisors is an integer number (17054928).

Almost surely, 2^135137111 is an apocalyptic number.

135137111 is a deficient number, since it is larger than the sum of its proper divisors (1302313).

135137111 is a wasteful number, since it uses less digits than its factorization.

135137111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181.

The product of its digits is 315, while the sum is 23.

The square root of 135137111 is about 11624.8488592325. The cubic root of 135137111 is about 513.1663967308.

Adding to 135137111 its reverse (111731531), we get a palindrome (246868642).

The spelling of 135137111 in words is "one hundred thirty-five million, one hundred thirty-seven thousand, one hundred eleven".