138616347 has 8 divisors (see below), whose sum is σ = 185855040. Its totient is φ = 91894280.

The previous prime is 138616337. The next prime is 138616369. The reversal of 138616347 is 743616831.

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 138616347 - 2¹² = 138612251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138616307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128529 + ... + 129602.

It is an arithmetic number, because the mean of its divisors is an integer number (23231880).

Almost surely, 2^138616347 is an apocalyptic number.

138616347 is a deficient number, since it is larger than the sum of its proper divisors (47238693).

138616347 is a wasteful number, since it uses less digits than its factorization.

138616347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258313.

The product of its digits is 72576, while the sum is 39.

The square root of 138616347 is about 11773.5443686258. The cubic root of 138616347 is about 517.5331221069.

The spelling of 138616347 in words is "one hundred thirty-eight million, six hundred sixteen thousand, three hundred forty-seven".