134216939 has 2 divisors, whose sum is σ = 134216940. Its totient is φ = 134216938.

The previous prime is 134216933. The next prime is 134216947. The reversal of 134216939 is 939612431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134216939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134216933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67108469 + 67108470.

It is an arithmetic number, because the mean of its divisors is an integer number (67108470).

Almost surely, 2^134216939 is an apocalyptic number.

134216939 is a deficient number, since it is larger than the sum of its proper divisors (1).

134216939 is an equidigital number, since it uses as much as digits as its factorization.

134216939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 134216939 is about 11585.2034509542. The cubic root of 134216939 is about 511.9989967327.

It can be divided in two parts, 1342 and 16939, that added together give a palindrome (18281).

The spelling of 134216939 in words is "one hundred thirty-four million, two hundred sixteen thousand, nine hundred thirty-nine".