386139 has 8 divisors (see below), whose sum is σ = 554512. Its totient is φ = 237600.

The previous prime is 386131. The next prime is 386143. The reversal of 386139 is 931683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 386139 - 2³ = 386131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4912 + ... + 4989.

It is an arithmetic number, because the mean of its divisors is an integer number (69314).

2³⁸⁶¹³⁹ is an apocalyptic number.

386139 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

386139 is a deficient number, since it is larger than the sum of its proper divisors (168373).

386139 is a wasteful number, since it uses less digits than its factorization.

386139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9917.

The product of its digits is 3888, while the sum is 30.

The square root of 386139 is about 621.4008368195. The cubic root of 386139 is about 72.8195329585.

It can be divided in two parts, 386 and 139, that added together give a palindrome (525).

The spelling of 386139 in words is "three hundred eighty-six thousand, one hundred thirty-nine".