1385138151315 has 24 divisors (see below), whose sum is σ = 2401618193520. Its totient is φ = 738521250624.

The previous prime is 1385138151307. The next prime is 1385138151329. The reversal of 1385138151315 is 5131518315831.

1385138151315 is a `hidden beast` number, since 1 + 3 + 8 + 51 + 3 + 81 + 513 + 1 + 5 = 666.

It is not a de Polignac number, because 1385138151315 - 2³ = 1385138151307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4411045 + ... + 4714614.

It is an arithmetic number, because the mean of its divisors is an integer number (100067424730).

Almost surely, 2^{1385138151315} is an apocalyptic number.

1385138151315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1385138151315 is a deficient number, since it is larger than the sum of its proper divisors (1016480042205).

1385138151315 is a wasteful number, since it uses less digits than its factorization.

1385138151315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9129043 (or 9129040 counting only the distinct ones).

The product of its digits is 216000, while the sum is 45.

It can be divided in two parts, 138513 and 8151315, that added together give a palindrome (8289828).

The spelling of 1385138151315 in words is "one trillion, three hundred eighty-five billion, one hundred thirty-eight million, one hundred fifty-one thousand, three hundred fifteen".