135503013 has 8 divisors (see below), whose sum is σ = 180736000. Its totient is φ = 90302688.

The previous prime is 135503009. The next prime is 135503029. The reversal of 135503013 is 310305531.

It is a happy number.

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

It is not a de Polignac number, because 135503013 - 2² = 135503009 is a prime.

It is a super-2 number, since 2×135503013² = 36722133064156338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135503063) 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, 4188 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (22592000).

Almost surely, 2^135503013 is an apocalyptic number.

It is an amenable number.

135503013 is a deficient number, since it is larger than the sum of its proper divisors (45232987).

135503013 is a wasteful number, since it uses less digits than its factorization.

135503013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16331.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 135503013 is about 11640.5761455351. The cubic root of 135503013 is about 513.6291351411.

Adding to 135503013 its reverse (310305531), we get a palindrome (445808544).

The spelling of 135503013 in words is "one hundred thirty-five million, five hundred three thousand, thirteen".