134568899 has 2 divisors, whose sum is σ = 134568900. Its totient is φ = 134568898.

The previous prime is 134568829. The next prime is 134568901. The reversal of 134568899 is 998865431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134568899 is a prime.

Together with 134568901, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 134568899.

It is not a weakly prime, because it can be changed into another prime (134568809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67284449 + 67284450.

It is an arithmetic number, because the mean of its divisors is an integer number (67284450).

Almost surely, 2^134568899 is an apocalyptic number.

134568899 is a deficient number, since it is larger than the sum of its proper divisors (1).

134568899 is an equidigital number, since it uses as much as digits as its factorization.

134568899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The square root of 134568899 is about 11600.3835712445. The cubic root of 134568899 is about 512.4461481390.

The spelling of 134568899 in words is "one hundred thirty-four million, five hundred sixty-eight thousand, eight hundred ninety-nine".