134402243 has 4 divisors (see below), whose sum is σ = 134436240. Its totient is φ = 134368248.

The previous prime is 134402239. The next prime is 134402249. The reversal of 134402243 is 342204431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342204431 = 5419 ⋅63149.

It is a cyclic number.

It is not a de Polignac number, because 134402243 - 2² = 134402239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134402249) 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, 10148 + ... + 19281.

It is an arithmetic number, because the mean of its divisors is an integer number (33609060).

Almost surely, 2^134402243 is an apocalyptic number.

134402243 is a deficient number, since it is larger than the sum of its proper divisors (33997).

134402243 is an equidigital number, since it uses as much as digits as its factorization.

134402243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33996.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 134402243 is about 11593.1981351135. The cubic root of 134402243 is about 512.2345155219.

Adding to 134402243 its reverse (342204431), we get a palindrome (476606674).

The spelling of 134402243 in words is "one hundred thirty-four million, four hundred two thousand, two hundred forty-three".