1386539136 has 96 divisors (see below), whose sum is σ = 4199972400. Its totient is φ = 437847552.

The previous prime is 1386539129. The next prime is 1386539173. The reversal of 1386539136 is 6319356831.

1386539136 is a `hidden beast` number, since 1 + 3 + 86 + 539 + 1 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 1386539091 and 1386539100.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9786 + ... + 53561.

Almost surely, 2^1386539136 is an apocalyptic number.

1386539136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386539136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099986200).

1386539136 is an abundant number, since it is smaller than the sum of its proper divisors (2813433264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1386539136 is a wasteful number, since it uses less digits than its factorization.

1386539136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63386 (or 63371 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 1386539136 is about 37236.2610367905. The cubic root of 1386539136 is about 1115.0920275011.

The spelling of 1386539136 in words is "one billion, three hundred eighty-six million, five hundred thirty-nine thousand, one hundred thirty-six".