134547491393 has 4 divisors (see below), whose sum is σ = 153768561600. Its totient is φ = 115326421188.

The previous prime is 134547491383. The next prime is 134547491417. The reversal of 134547491393 is 393194745431.

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 an emirpimes, since its reverse is a distinct semiprime: 393194745431 = 71 ⋅5537954161.

It is a cyclic number.

It is not a de Polignac number, because 134547491393 - 2⁶ = 134547491329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134547491303) 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, 9610535093 + ... + 9610535106.

It is an arithmetic number, because the mean of its divisors is an integer number (38442140400).

Almost surely, 2^134547491393 is an apocalyptic number.

It is an amenable number.

134547491393 is a deficient number, since it is larger than the sum of its proper divisors (19221070207).

134547491393 is an equidigital number, since it uses as much as digits as its factorization.

134547491393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19221070206.

The product of its digits is 4898880, while the sum is 53.

The spelling of 134547491393 in words is "one hundred thirty-four billion, five hundred forty-seven million, four hundred ninety-one thousand, three hundred ninety-three".