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134989 is a prime number
BaseRepresentation
bin100000111101001101
320212011121
4200331031
513304424
62520541
71101361
oct407515
9225147
10134989
1192468
1266151
134959a
14372a1
1529ee4
hex20f4d

134989 has 2 divisors, whose sum is σ = 134990. Its totient is φ = 134988.

The previous prime is 134951. The next prime is 134999. The reversal of 134989 is 989431.

134989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133225 + 1764 = 365^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 134989 - 217 = 3917 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134909) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67494 + 67495.

It is an arithmetic number, because the mean of its divisors is an integer number (67495).

2134989 is an apocalyptic number.

It is an amenable number.

134989 is a deficient number, since it is larger than the sum of its proper divisors (1).

134989 is an equidigital number, since it uses as much as digits as its factorization.

134989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 134989 is about 367.4084920086. The cubic root of 134989 is about 51.2978850487.

The spelling of 134989 in words is "one hundred thirty-four thousand, nine hundred eighty-nine".