138115345 has 8 divisors (see below), whose sum is σ = 172944576. Its totient is φ = 105688176.

The previous prime is 138115337. The next prime is 138115357. The reversal of 138115345 is 543511831.

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

It is a cyclic number.

It is not a de Polignac number, because 138115345 - 2³ = 138115337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600387 + ... + 600616.

It is an arithmetic number, because the mean of its divisors is an integer number (21618072).

Almost surely, 2^138115345 is an apocalyptic number.

It is an amenable number.

138115345 is a deficient number, since it is larger than the sum of its proper divisors (34829231).

138115345 is a wasteful number, since it uses less digits than its factorization.

138115345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201031.

The product of its digits is 7200, while the sum is 31.

The square root of 138115345 is about 11752.2485082643. The cubic root of 138115345 is about 516.9088615915.

The spelling of 138115345 in words is "one hundred thirty-eight million, one hundred fifteen thousand, three hundred forty-five".