138229345 has 8 divisors (see below), whose sum is σ = 166026240. Its totient is φ = 110482800.

The previous prime is 138229339. The next prime is 138229367. The reversal of 138229345 is 543922831.

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

It is not a de Polignac number, because 138229345 - 2³ = 138229337 is a prime.

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, 6255 + ... + 17764.

It is an arithmetic number, because the mean of its divisors is an integer number (20753280).

Almost surely, 2^138229345 is an apocalyptic number.

It is an amenable number.

138229345 is a deficient number, since it is larger than the sum of its proper divisors (27796895).

138229345 is a wasteful number, since it uses less digits than its factorization.

138229345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25175.

The product of its digits is 51840, while the sum is 37.

The square root of 138229345 is about 11757.0976435513. The cubic root of 138229345 is about 517.0510408325.

The spelling of 138229345 in words is "one hundred thirty-eight million, two hundred twenty-nine thousand, three hundred forty-five".