1386135539 has 4 divisors (see below), whose sum is σ = 1387065456. Its totient is φ = 1385205624.

The previous prime is 1386135479. The next prime is 1386135577. The reversal of 1386135539 is 9355316831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1386135539 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 1386135539.

It is not an unprimeable number, because it can be changed into a prime (1386135739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462719 + ... + 465704.

It is an arithmetic number, because the mean of its divisors is an integer number (346766364).

Almost surely, 2^1386135539 is an apocalyptic number.

1386135539 is a deficient number, since it is larger than the sum of its proper divisors (929917).

1386135539 is an equidigital number, since it uses as much as digits as its factorization.

1386135539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929916.

The product of its digits is 291600, while the sum is 44.

The square root of 1386135539 is about 37230.8412341166. The cubic root of 1386135539 is about 1114.9838224844.

The spelling of 1386135539 in words is "one billion, three hundred eighty-six million, one hundred thirty-five thousand, five hundred thirty-nine".