134866385 has 8 divisors (see below), whose sum is σ = 167420520. Its totient is φ = 104172544.

The previous prime is 134866373. The next prime is 134866387. The reversal of 134866385 is 583668431.

It can be written as a sum of positive squares in 4 ways, for example, as 39589264 + 95277121 = 6292^2 + 9761^2 .

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 134866385 - 2¹⁰ = 134865361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134866387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464912 + ... + 465201.

It is an arithmetic number, because the mean of its divisors is an integer number (20927565).

Almost surely, 2^134866385 is an apocalyptic number.

It is an amenable number.

134866385 is a deficient number, since it is larger than the sum of its proper divisors (32554135).

134866385 is an equidigital number, since it uses as much as digits as its factorization.

134866385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930147.

The product of its digits is 414720, while the sum is 44.

The square root of 134866385 is about 11613.1987410877. The cubic root of 134866385 is about 512.8234848506.

The spelling of 134866385 in words is "one hundred thirty-four million, eight hundred sixty-six thousand, three hundred eighty-five".