134242513 has 4 divisors (see below), whose sum is σ = 140079168. Its totient is φ = 128405860.

The previous prime is 134242499. The next prime is 134242519. The reversal of 134242513 is 315242431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134242513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134242519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2918293 + ... + 2918338.

It is an arithmetic number, because the mean of its divisors is an integer number (35019792).

Almost surely, 2^134242513 is an apocalyptic number.

It is an amenable number.

134242513 is a deficient number, since it is larger than the sum of its proper divisors (5836655).

134242513 is an equidigital number, since it uses as much as digits as its factorization.

134242513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836654.

The product of its digits is 2880, while the sum is 25.

The square root of 134242513 is about 11586.3071338542. The cubic root of 134242513 is about 512.0315138175.

Adding to 134242513 its reverse (315242431), we get a palindrome (449484944).

The spelling of 134242513 in words is "one hundred thirty-four million, two hundred forty-two thousand, five hundred thirteen".