134165889 has 81 divisors (see below), whose sum is σ = 239520099. Its totient is φ = 75057840.

The previous prime is 134165869. The next prime is 134165929. The reversal of 134165889 is 988561431.

The square root of 134165889 is 11583.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19847025 + 114318864 = 4455^2 + 10692^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 134165889 - 2⁷ = 134165761 is a prime.

Its product of digits (207360) is a multiple of the sum of its prime divisors (27).

It is not an unprimeable number, because it can be changed into a prime (134165869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 10320447 + ... + 10320459.

Almost surely, 2^134165889 is an apocalyptic number.

134165889 is the 11583-rd square number.

134165889 is the 5792-nd centered octagonal number.

It is an amenable number.

134165889 is a deficient number, since it is larger than the sum of its proper divisors (105354210).

134165889 is an frugal number, since it uses more digits than its factorization.

134165889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 27 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The cubic root of 134165889 is about 511.9340748146.

The spelling of 134165889 in words is "one hundred thirty-four million, one hundred sixty-five thousand, eight hundred eighty-nine".