386825139 has 12 divisors (see below), whose sum is σ = 579442136. Its totient is φ = 257883264.

The previous prime is 386825093. The next prime is 386825141. The reversal of 386825139 is 931528683.

It is a happy number.

It is not a de Polignac number, because 386825139 - 2²⁵ = 353270707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386825094 and 386825103.

It is not an unprimeable number, because it can be changed into a prime (386825539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 795694 + ... + 796179.

Almost surely, 2^386825139 is an apocalyptic number.

386825139 is a deficient number, since it is larger than the sum of its proper divisors (192616997).

386825139 is an equidigital number, since it uses as much as digits as its factorization.

386825139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591888 (or 1591876 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 386825139 is about 19667.8707286783. The cubic root of 386825139 is about 728.6263898726.

The spelling of 386825139 in words is "three hundred eighty-six million, eight hundred twenty-five thousand, one hundred thirty-nine".