134187513 has 4 divisors (see below), whose sum is σ = 178916688. Its totient is φ = 89458340.

The previous prime is 134187503. The next prime is 134187517. The reversal of 134187513 is 315781431.

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 not a de Polignac number, because 134187513 - 2⁸ = 134187257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134187517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22364583 + ... + 22364588.

It is an arithmetic number, because the mean of its divisors is an integer number (44729172).

Almost surely, 2^134187513 is an apocalyptic number.

It is an amenable number.

134187513 is a deficient number, since it is larger than the sum of its proper divisors (44729175).

134187513 is an equidigital number, since it uses as much as digits as its factorization.

134187513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44729174.

The product of its digits is 10080, while the sum is 33.

The square root of 134187513 is about 11583.9333993251. The cubic root of 134187513 is about 511.9615767573.

The spelling of 134187513 in words is "one hundred thirty-four million, one hundred eighty-seven thousand, five hundred thirteen".