134444669 has 2 divisors, whose sum is σ = 134444670. Its totient is φ = 134444668.

The previous prime is 134444663. The next prime is 134444689. The reversal of 134444669 is 966444431.

134444669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112635769 + 21808900 = 10613^2 + 4670^2 .

It is a cyclic number.

It is not a de Polignac number, because 134444669 - 2⁸ = 134444413 is a prime.

It is a super-2 number, since 2×134444669² = 36150738045039122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134444663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67222334 + 67222335.

It is an arithmetic number, because the mean of its divisors is an integer number (67222335).

Almost surely, 2^134444669 is an apocalyptic number.

It is an amenable number.

134444669 is a deficient number, since it is larger than the sum of its proper divisors (1).

134444669 is an equidigital number, since it uses as much as digits as its factorization.

134444669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 41.

The square root of 134444669 is about 11595.0277705575. The cubic root of 134444669 is about 512.2884079143.

The spelling of 134444669 in words is "one hundred thirty-four million, four hundred forty-four thousand, six hundred sixty-nine".