134564281373 has 4 divisors (see below), whose sum is σ = 134565069600. Its totient is φ = 134563493148.

The previous prime is 134564281351. The next prime is 134564281403. The reversal of 134564281373 is 373182465431.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 373182465431 = 387953 ⋅961927.

It is a cyclic number.

It is not a de Polignac number, because 134564281373 - 2¹⁶ = 134564215837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134564281333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19073 + ... + 519126.

It is an arithmetic number, because the mean of its divisors is an integer number (33641267400).

Almost surely, 2^134564281373 is an apocalyptic number.

It is an amenable number.

134564281373 is a deficient number, since it is larger than the sum of its proper divisors (788227).

134564281373 is an equidigital number, since it uses as much as digits as its factorization.

134564281373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788226.

The product of its digits is 1451520, while the sum is 47.

The spelling of 134564281373 in words is "one hundred thirty-four billion, five hundred sixty-four million, two hundred eighty-one thousand, three hundred seventy-three".