134945123 has 2 divisors, whose sum is σ = 134945124. Its totient is φ = 134945122.

The previous prime is 134945119. The next prime is 134945143. The reversal of 134945123 is 321549431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134945123 - 2² = 134945119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134945123.

It is not a weakly prime, because it can be changed into another prime (134945113) 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, 67472561 + 67472562.

It is an arithmetic number, because the mean of its divisors is an integer number (67472562).

Almost surely, 2^134945123 is an apocalyptic number.

134945123 is a deficient number, since it is larger than the sum of its proper divisors (1).

134945123 is an equidigital number, since it uses as much as digits as its factorization.

134945123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 134945123 is about 11616.5882685064. The cubic root of 134945123 is about 512.9232646935.

The spelling of 134945123 in words is "one hundred thirty-four million, nine hundred forty-five thousand, one hundred twenty-three".