386263139 has 2 divisors, whose sum is σ = 386263140. Its totient is φ = 386263138.

The previous prime is 386263133. The next prime is 386263169. The reversal of 386263139 is 931362683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 386263139 - 2⁴ = 386263123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 386263096 and 386263105.

It is not a weakly prime, because it can be changed into another prime (386263133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193131569 + 193131570.

It is an arithmetic number, because the mean of its divisors is an integer number (193131570).

Almost surely, 2^386263139 is an apocalyptic number.

386263139 is a deficient number, since it is larger than the sum of its proper divisors (1).

386263139 is an equidigital number, since it uses as much as digits as its factorization.

386263139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The square root of 386263139 is about 19653.5782747061. The cubic root of 386263139 is about 728.2733565433.

The spelling of 386263139 in words is "three hundred eighty-six million, two hundred sixty-three thousand, one hundred thirty-nine".