138163345 has 8 divisors (see below), whose sum is σ = 174522240. Its totient is φ = 104713200.

The previous prime is 138163331. The next prime is 138163357. The reversal of 138163345 is 543361831.

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

It is not a de Polignac number, because 138163345 - 2¹¹ = 138161297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138163345.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 727081 + ... + 727270.

It is an arithmetic number, because the mean of its divisors is an integer number (21815280).

Almost surely, 2^138163345 is an apocalyptic number.

It is an amenable number.

138163345 is a deficient number, since it is larger than the sum of its proper divisors (36358895).

138163345 is a wasteful number, since it uses less digits than its factorization.

138163345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454375.

The product of its digits is 25920, while the sum is 34.

The square root of 138163345 is about 11754.2904932624. The cubic root of 138163345 is about 516.9687360672.

It can be divided in two parts, 13816 and 3345, that added together give a square (17161 = 131²).

The spelling of 138163345 in words is "one hundred thirty-eight million, one hundred sixty-three thousand, three hundred forty-five".