134614461521 has 4 divisors (see below), whose sum is σ = 141699433200. Its totient is φ = 127529489844.

The previous prime is 134614461491. The next prime is 134614461581. The reversal of 134614461521 is 125164416431.

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 a de Polignac number, because none of the positive numbers 2^k-134614461521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134614461581) 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, 3542485811 + ... + 3542485848.

It is an arithmetic number, because the mean of its divisors is an integer number (35424858300).

Almost surely, 2^134614461521 is an apocalyptic number.

It is an amenable number.

134614461521 is a deficient number, since it is larger than the sum of its proper divisors (7084971679).

134614461521 is an equidigital number, since it uses as much as digits as its factorization.

134614461521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084971678.

The product of its digits is 69120, while the sum is 38.

Adding to 134614461521 its reverse (125164416431), we get a palindrome (259778877952).

The spelling of 134614461521 in words is "one hundred thirty-four billion, six hundred fourteen million, four hundred sixty-one thousand, five hundred twenty-one".