138225604126 has 8 divisors (see below), whose sum is σ = 207353473200. Its totient is φ = 69107779728.

The previous prime is 138225604123. The next prime is 138225604129. The reversal of 138225604126 is 621406522831.

It is an interprime number because it is at equal distance from previous prime (138225604123) and next prime (138225604129).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138225604123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2476671 + ... + 2531866.

It is an arithmetic number, because the mean of its divisors is an integer number (25919184150).

Almost surely, 2^138225604126 is an apocalyptic number.

138225604126 is a deficient number, since it is larger than the sum of its proper divisors (69127869074).

138225604126 is a wasteful number, since it uses less digits than its factorization.

138225604126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022338.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 138225604126 in words is "one hundred thirty-eight billion, two hundred twenty-five million, six hundred four thousand, one hundred twenty-six".