1385225172138 has 16 divisors (see below), whose sum is σ = 2774969846496. Its totient is φ = 460988473680.

The previous prime is 1385225172083. The next prime is 1385225172139. The reversal of 1385225172138 is 8312715225831.

It is not an unprimeable number, because it can be changed into a prime (1385225172139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 188308608 + ... + 188315963.

It is an arithmetic number, because the mean of its divisors is an integer number (173435615406).

Almost surely, 2^{1385225172138} is an apocalyptic number.

1385225172138 is an abundant number, since it is smaller than the sum of its proper divisors (1389744674358).

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

1385225172138 is a wasteful number, since it uses less digits than its factorization.

1385225172138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376625189.

The product of its digits is 806400, while the sum is 48.

The spelling of 1385225172138 in words is "one trillion, three hundred eighty-five billion, two hundred twenty-five million, one hundred seventy-two thousand, one hundred thirty-eight".