1386853831 has 8 divisors (see below), whose sum is σ = 1515515904. Its totient is φ = 1258622520.

The previous prime is 1386853817. The next prime is 1386853847. The reversal of 1386853831 is 1383586831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1386853831 is a prime.

It is a super-2 number, since 2×1386853831² = 3846727097118753122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386833831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100935 + ... + 113848.

It is an arithmetic number, because the mean of its divisors is an integer number (189439488).

Almost surely, 2^1386853831 is an apocalyptic number.

1386853831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1386853831 is a deficient number, since it is larger than the sum of its proper divisors (128662073).

1386853831 is a wasteful number, since it uses less digits than its factorization.

1386853831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215381.

The product of its digits is 414720, while the sum is 46.

The square root of 1386853831 is about 37240.4864495619. The cubic root of 1386853831 is about 1115.1763831777.

It can be divided in two parts, 1386853 and 831, that added together give a square (1387684 = 1178²).

The spelling of 1386853831 in words is "one billion, three hundred eighty-six million, eight hundred fifty-three thousand, eight hundred thirty-one".