135134013 has 24 divisors (see below), whose sum is σ = 213161760. Its totient is φ = 75905760.

The previous prime is 135133981. The next prime is 135134107. The reversal of 135134013 is 310431531.

It is not a de Polignac number, because 135134013 - 2⁵ = 135133981 is a prime.

It is a super-2 number, since 2×135134013² = 36522402938968338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135134413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 883 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (8881740).

Almost surely, 2^135134013 is an apocalyptic number.

It is an amenable number.

135134013 is a deficient number, since it is larger than the sum of its proper divisors (78027747).

135134013 is a wasteful number, since it uses less digits than its factorization.

135134013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15657 (or 15650 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 135134013 is about 11624.7156094246. The cubic root of 135134013 is about 513.1624752774.

Adding to 135134013 its reverse (310431531), we get a palindrome (445565544).

The spelling of 135134013 in words is "one hundred thirty-five million, one hundred thirty-four thousand, thirteen".