138847001 has 8 divisors (see below), whose sum is σ = 141469440. Its totient is φ = 136233648.

The previous prime is 138846997. The next prime is 138847013. The reversal of 138847001 is 100748831.

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 138847001 - 2² = 138846997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138847201) by changing a digit.

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, 33875 + ... + 37751.

It is an arithmetic number, because the mean of its divisors is an integer number (17683680).

Almost surely, 2^138847001 is an apocalyptic number.

It is an amenable number.

138847001 is a deficient number, since it is larger than the sum of its proper divisors (2622439).

138847001 is an equidigital number, since it uses as much as digits as its factorization.

138847001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4543.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 138847001 is about 11783.3357331445. The cubic root of 138847001 is about 517.8200169269.

The spelling of 138847001 in words is "one hundred thirty-eight million, eight hundred forty-seven thousand, one".