134444569 has 8 divisors (see below), whose sum is σ = 157803968. Its totient is φ = 112123440.

The previous prime is 134444543. The next prime is 134444621. The reversal of 134444569 is 965444431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134444569 - 2⁷ = 134444441 is a prime.

It is a super-2 number, since 2×134444569² = 36150684267191522, which contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (134444509) 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 7 ways as a sum of consecutive naturals, for example, 259287 + ... + 259804.

It is an arithmetic number, because the mean of its divisors is an integer number (19725496).

Almost surely, 2^134444569 is an apocalyptic number.

It is an amenable number.

134444569 is a deficient number, since it is larger than the sum of its proper divisors (23359399).

134444569 is an equidigital number, since it uses as much as digits as its factorization.

134444569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519135.

The product of its digits is 207360, while the sum is 40.

The square root of 134444569 is about 11595.0234583635. The cubic root of 134444569 is about 512.2882809008.

The spelling of 134444569 in words is "one hundred thirty-four million, four hundred forty-four thousand, five hundred sixty-nine".