134400193 has 4 divisors (see below), whose sum is σ = 135785860. Its totient is φ = 133014528.

The previous prime is 134400187. The next prime is 134400199. The reversal of 134400193 is 391004431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391004431 = 101 ⋅3871331.

It is an interprime number because it is at equal distance from previous prime (134400187) and next prime (134400199).

It can be written as a sum of positive squares in 2 ways, for example, as 80407089 + 53993104 = 8967^2 + 7348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134400193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134400199) 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, 692688 + ... + 692881.

It is an arithmetic number, because the mean of its divisors is an integer number (33946465).

Almost surely, 2^134400193 is an apocalyptic number.

It is an amenable number.

134400193 is a deficient number, since it is larger than the sum of its proper divisors (1385667).

134400193 is an equidigital number, since it uses as much as digits as its factorization.

134400193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385666.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 134400193 is about 11593.1097208644. The cubic root of 134400193 is about 512.2319111851.

The spelling of 134400193 in words is "one hundred thirty-four million, four hundred thousand, one hundred ninety-three".