134437237013721 has 16 divisors (see below), whose sum is σ = 190587862483200. Its totient is φ = 83999835671808.

The previous prime is 134437237013671. The next prime is 134437237013773. The reversal of 134437237013721 is 127310732734431.

It is a happy number.

It is not a de Polignac number, because 134437237013721 - 2¹¹ = 134437237011673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134437237013921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5514682906 + ... + 5514707283.

It is an arithmetic number, because the mean of its divisors is an integer number (11911741405200).

Almost surely, 2^{134437237013721} is an apocalyptic number.

It is an amenable number.

134437237013721 is a deficient number, since it is larger than the sum of its proper divisors (56150625469479).

134437237013721 is a wasteful number, since it uses less digits than its factorization.

134437237013721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11029390448.

The product of its (nonzero) digits is 1778112, while the sum is 48.

The spelling of 134437237013721 in words is "one hundred thirty-four trillion, four hundred thirty-seven billion, two hundred thirty-seven million, thirteen thousand, seven hundred twenty-one".