1387600138 has 8 divisors (see below), whose sum is σ = 2101608288. Its totient is φ = 687064044.

The previous prime is 1387600127. The next prime is 1387600147. The reversal of 1387600138 is 8310067831.

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

It is a junction number, because it is equal to n+sod(n) for n = 1387600097 and 1387600106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3367756 + ... + 3368167.

It is an arithmetic number, because the mean of its divisors is an integer number (262701036).

Almost surely, 2^1387600138 is an apocalyptic number.

1387600138 is a deficient number, since it is larger than the sum of its proper divisors (714008150).

1387600138 is a wasteful number, since it uses less digits than its factorization.

1387600138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736028.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1387600138 is about 37250.5052046278. The cubic root of 1387600138 is about 1115.3763837541.

Adding to 1387600138 its reverse (8310067831), we get a palindrome (9697667969).

The spelling of 1387600138 in words is "one billion, three hundred eighty-seven million, six hundred thousand, one hundred thirty-eight".