134345243 has 2 divisors, whose sum is σ = 134345244. Its totient is φ = 134345242.

The previous prime is 134345213. The next prime is 134345249. The reversal of 134345243 is 342543431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134345243 - 2⁶ = 134345179 is a prime.

It is not a weakly prime, because it can be changed into another prime (134345249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67172621 + 67172622.

It is an arithmetic number, because the mean of its divisors is an integer number (67172622).

Almost surely, 2^134345243 is an apocalyptic number.

134345243 is a deficient number, since it is larger than the sum of its proper divisors (1).

134345243 is an equidigital number, since it uses as much as digits as its factorization.

134345243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 29.

The square root of 134345243 is about 11590.7395363713. The cubic root of 134345243 is about 512.1620923856.

Adding to 134345243 its reverse (342543431), we get a palindrome (476888674).

The spelling of 134345243 in words is "one hundred thirty-four million, three hundred forty-five thousand, two hundred forty-three".