135449013 has 32 divisors (see below), whose sum is σ = 225607680. Its totient is φ = 70490880.

The previous prime is 135449003. The next prime is 135449029. The reversal of 135449013 is 310944531.

It is not a de Polignac number, because 135449013 - 2⁵ = 135448981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135449003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4948 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (7050240).

Almost surely, 2^135449013 is an apocalyptic number.

It is an amenable number.

135449013 is a deficient number, since it is larger than the sum of its proper divisors (90158667).

135449013 is a wasteful number, since it uses less digits than its factorization.

135449013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12297.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 135449013 is about 11638.2564415809. The cubic root of 135449013 is about 513.5608964161.

The spelling of 135449013 in words is "one hundred thirty-five million, four hundred forty-nine thousand, thirteen".