134573243993 has 2 divisors, whose sum is σ = 134573243994. Its totient is φ = 134573243992.

The previous prime is 134573243989. The next prime is 134573244049. The reversal of 134573243993 is 399342375431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130659115024 + 3914128969 = 361468^2 + 62563^2 .

It is a cyclic number.

It is not a de Polignac number, because 134573243993 - 2² = 134573243989 is a prime.

It is not a weakly prime, because it can be changed into another prime (134573243393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67286621996 + 67286621997.

It is an arithmetic number, because the mean of its divisors is an integer number (67286621997).

Almost surely, 2^134573243993 is an apocalyptic number.

It is an amenable number.

134573243993 is a deficient number, since it is larger than the sum of its proper divisors (1).

134573243993 is an equidigital number, since it uses as much as digits as its factorization.

134573243993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 53.

The spelling of 134573243993 in words is "one hundred thirty-four billion, five hundred seventy-three million, two hundred forty-three thousand, nine hundred ninety-three".