134985789 has 6 divisors (see below), whose sum is σ = 194979486. Its totient is φ = 89990520.

The previous prime is 134985761. The next prime is 134985803. The reversal of 134985789 is 987589431.

It can be written as a sum of positive squares in only one way, i.e., 123876900 + 11108889 = 11130^2 + 3333^2 .

It is not a de Polignac number, because 134985789 - 2⁵ = 134985757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134985089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7499202 + ... + 7499219.

It is an arithmetic number, because the mean of its divisors is an integer number (32496581).

Almost surely, 2^134985789 is an apocalyptic number.

It is an amenable number.

134985789 is a deficient number, since it is larger than the sum of its proper divisors (59993697).

134985789 is a wasteful number, since it uses less digits than its factorization.

134985789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14998427 (or 14998424 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 134985789 is about 11618.3384784572. The cubic root of 134985789 is about 512.9747830246.

The spelling of 134985789 in words is "one hundred thirty-four million, nine hundred eighty-five thousand, seven hundred eighty-nine".