134511440647 has 4 divisors (see below), whose sum is σ = 134559159480. Its totient is φ = 134463721816.

The previous prime is 134511440597. The next prime is 134511440653. The reversal of 134511440647 is 746044115431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134511440647 - 2¹¹ = 134511438599 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 (134511440447) 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, 23855188 + ... + 23860825.

It is an arithmetic number, because the mean of its divisors is an integer number (33639789870).

Almost surely, 2^134511440647 is an apocalyptic number.

134511440647 is a deficient number, since it is larger than the sum of its proper divisors (47718833).

134511440647 is an equidigital number, since it uses as much as digits as its factorization.

134511440647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47718832.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 134511440647 in words is "one hundred thirty-four billion, five hundred eleven million, four hundred forty thousand, six hundred forty-seven".