134969899 has 2 divisors, whose sum is σ = 134969900. Its totient is φ = 134969898.

The previous prime is 134969897. The next prime is 134969921. The reversal of 134969899 is 998969431.

It is a weak prime.

It is an emirp because it is prime and its reverse (998969431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134969899 - 2¹ = 134969897 is a prime.

Together with 134969897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (134969893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67484949 + 67484950.

It is an arithmetic number, because the mean of its divisors is an integer number (67484950).

Almost surely, 2^134969899 is an apocalyptic number.

134969899 is a deficient number, since it is larger than the sum of its proper divisors (1).

134969899 is an equidigital number, since it uses as much as digits as its factorization.

134969899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 58.

The square root of 134969899 is about 11617.6546256118. The cubic root of 134969899 is about 512.9546537719.

The spelling of 134969899 in words is "one hundred thirty-four million, nine hundred sixty-nine thousand, eight hundred ninety-nine".