134500313521 has 8 divisors (see below), whose sum is σ = 158673181184. Its totient is φ = 111567080160.

The previous prime is 134500313509. The next prime is 134500313531. The reversal of 134500313521 is 125313005431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 134500313521 - 2²³ = 134491924913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134500313521.

It is not an unprimeable number, because it can be changed into a prime (134500313531) 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, 309908340 + ... + 309908773.

It is an arithmetic number, because the mean of its divisors is an integer number (19834147648).

Almost surely, 2^134500313521 is an apocalyptic number.

It is an amenable number.

134500313521 is a deficient number, since it is larger than the sum of its proper divisors (24172867663).

134500313521 is an equidigital number, since it uses as much as digits as its factorization.

134500313521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619817151.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 134500313521 its reverse (125313005431), we get a palindrome (259813318952).

The spelling of 134500313521 in words is "one hundred thirty-four billion, five hundred million, three hundred thirteen thousand, five hundred twenty-one".