134163385 has 4 divisors (see below), whose sum is σ = 160996068. Its totient is φ = 107330704.

The previous prime is 134163373. The next prime is 134163433. The reversal of 134163385 is 583361431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583361431 = 12713 ⋅45887.

It can be written as a sum of positive squares in 2 ways, for example, as 91757241 + 42406144 = 9579^2 + 6512^2 .

It is a cyclic number.

It is not a de Polignac number, because 134163385 - 2¹⁹ = 133639097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134163385.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13416334 + ... + 13416343.

It is an arithmetic number, because the mean of its divisors is an integer number (40249017).

Almost surely, 2^134163385 is an apocalyptic number.

It is an amenable number.

134163385 is a deficient number, since it is larger than the sum of its proper divisors (26832683).

134163385 is an equidigital number, since it uses as much as digits as its factorization.

134163385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26832682.

The product of its digits is 25920, while the sum is 34.

The square root of 134163385 is about 11582.8919100542. The cubic root of 134163385 is about 511.9308899741.

The spelling of 134163385 in words is "one hundred thirty-four million, one hundred sixty-three thousand, three hundred eighty-five".