134400223 has 2 divisors, whose sum is σ = 134400224. Its totient is φ = 134400222.

The previous prime is 134400199. The next prime is 134400257. The reversal of 134400223 is 322004431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134400223 - 2¹⁷ = 134269151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134400223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134400823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67200111 + 67200112.

It is an arithmetic number, because the mean of its divisors is an integer number (67200112).

Almost surely, 2^134400223 is an apocalyptic number.

134400223 is a deficient number, since it is larger than the sum of its proper divisors (1).

134400223 is an equidigital number, since it uses as much as digits as its factorization.

134400223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 134400223 is about 11593.1110147363. Note that the first 3 decimals coincide. The cubic root of 134400223 is about 512.2319492976.

Adding to 134400223 its reverse (322004431), we get a palindrome (456404654).

The spelling of 134400223 in words is "one hundred thirty-four million, four hundred thousand, two hundred twenty-three".