1386139874 has 8 divisors (see below), whose sum is σ = 2376239808. Its totient is φ = 594059940.

The previous prime is 1386139817. The next prime is 1386139891. The reversal of 1386139874 is 4789316831.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49504982 + ... + 49505009.

It is an arithmetic number, because the mean of its divisors is an integer number (297029976).

Almost surely, 2^1386139874 is an apocalyptic number.

1386139874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1386139874 is a deficient number, since it is larger than the sum of its proper divisors (990099934).

1386139874 is an equidigital number, since it uses as much as digits as its factorization.

1386139874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99010000.

The product of its digits is 870912, while the sum is 50.

The square root of 1386139874 is about 37230.8994519337. The cubic root of 1386139874 is about 1114.9849848166.

It can be divided in two parts, 13861 and 39874, that added together give a palindrome (53735).

The spelling of 1386139874 in words is "one billion, three hundred eighty-six million, one hundred thirty-nine thousand, eight hundred seventy-four".