138313453825 has 12 divisors (see below), whose sum is σ = 171518508720. Its totient is φ = 110644423760.

The previous prime is 138313453819. The next prime is 138313453829. The reversal of 138313453825 is 528354313831.

It is a happy number.

It is not a de Polignac number, because 138313453825 - 2¹⁹ = 138312929537 is a prime.

It is a super-2 number, since 2×138313453825² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138313453829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314262 + ... + 612688.

It is an arithmetic number, because the mean of its divisors is an integer number (14293209060).

Almost surely, 2^138313453825 is an apocalyptic number.

It is an amenable number.

138313453825 is a deficient number, since it is larger than the sum of its proper divisors (33205054895).

138313453825 is a wasteful number, since it uses less digits than its factorization.

138313453825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316976 (or 316971 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The spelling of 138313453825 in words is "one hundred thirty-eight billion, three hundred thirteen million, four hundred fifty-three thousand, eight hundred twenty-five".