138125698 has 8 divisors (see below), whose sum is σ = 207240192. Its totient is φ = 69045636.

The previous prime is 138125693. The next prime is 138125707. The reversal of 138125698 is 896521831.

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

It is not an unprimeable number, because it can be changed into a prime (138125693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7311 + ... + 18157.

It is an arithmetic number, because the mean of its divisors is an integer number (25905024).

Almost surely, 2^138125698 is an apocalyptic number.

138125698 is a deficient number, since it is larger than the sum of its proper divisors (69114494).

138125698 is a wasteful number, since it uses less digits than its factorization.

138125698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216.

The product of its digits is 103680, while the sum is 43.

The square root of 138125698 is about 11752.6889689126. The cubic root of 138125698 is about 516.9217769407.

The spelling of 138125698 in words is "one hundred thirty-eight million, one hundred twenty-five thousand, six hundred ninety-eight".