386218135 has 4 divisors (see below), whose sum is σ = 463461768. Its totient is φ = 308974504.

The previous prime is 386218127. The next prime is 386218141. The reversal of 386218135 is 531812683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531812683 = 17 ⋅31283099.

It is a cyclic number.

It is not a de Polignac number, because 386218135 - 2³ = 386218127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386218094 and 386218103.

It is a congruent number.

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, 38621809 + ... + 38621818.

It is an arithmetic number, because the mean of its divisors is an integer number (115865442).

Almost surely, 2^386218135 is an apocalyptic number.

386218135 is a deficient number, since it is larger than the sum of its proper divisors (77243633).

386218135 is an equidigital number, since it uses as much as digits as its factorization.

386218135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77243632.

The product of its digits is 34560, while the sum is 37.

The square root of 386218135 is about 19652.4333098983. The cubic root of 386218135 is about 728.2450714325.

The spelling of 386218135 in words is "three hundred eighty-six million, two hundred eighteen thousand, one hundred thirty-five".