134408069 has 16 divisors (see below), whose sum is σ = 147841200. Its totient is φ = 121626624.

The previous prime is 134408059. The next prime is 134408089. The reversal of 134408069 is 960804431.

It can be written as a sum of positive squares in 8 ways, for example, as 8631844 + 125776225 = 2938^2 + 11215^2 .

It is a cyclic number.

It is not a de Polignac number, because 134408069 - 2²⁰ = 133359493 is a prime.

It is a super-2 number, since 2×134408069² = 36131058024617522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134408059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165737 + ... + 166545.

It is an arithmetic number, because the mean of its divisors is an integer number (9240075).

Almost surely, 2^134408069 is an apocalyptic number.

It is an amenable number.

134408069 is a deficient number, since it is larger than the sum of its proper divisors (13433131).

134408069 is a wasteful number, since it uses less digits than its factorization.

134408069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 134408069 is about 11593.4494004157. The cubic root of 134408069 is about 512.2419167753.

The spelling of 134408069 in words is "one hundred thirty-four million, four hundred eight thousand, sixty-nine".