134129871 has 8 divisors (see below), whose sum is σ = 198710960. Its totient is φ = 89419896.

The previous prime is 134129867. The next prime is 134129893. The reversal of 134129871 is 178921431.

It is a happy number.

It is not a de Polignac number, because 134129871 - 2² = 134129867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134129851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2483860 + ... + 2483913.

It is an arithmetic number, because the mean of its divisors is an integer number (24838870).

Almost surely, 2^134129871 is an apocalyptic number.

134129871 is a deficient number, since it is larger than the sum of its proper divisors (64581089).

134129871 is an equidigital number, since it uses as much as digits as its factorization.

134129871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967782 (or 4967776 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 134129871 is about 11581.4451170828. The cubic root of 134129871 is about 511.8882596627. Note that the first 3 decimals are identical.

The spelling of 134129871 in words is "one hundred thirty-four million, one hundred twenty-nine thousand, eight hundred seventy-one".