133895129 has 2 divisors, whose sum is σ = 133895130. Its totient is φ = 133895128.

The previous prime is 133895123. The next prime is 133895143. The reversal of 133895129 is 921598331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112254025 + 21641104 = 10595^2 + 4652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133895129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133895123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66947564 + 66947565.

It is an arithmetic number, because the mean of its divisors is an integer number (66947565).

Almost surely, 2^133895129 is an apocalyptic number.

It is an amenable number.

133895129 is a deficient number, since it is larger than the sum of its proper divisors (1).

133895129 is an equidigital number, since it uses as much as digits as its factorization.

133895129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 133895129 is about 11571.3062788952. The cubic root of 133895129 is about 511.5894650693.

The spelling of 133895129 in words is "one hundred thirty-three million, eight hundred ninety-five thousand, one hundred twenty-nine".