138284671 has 8 divisors (see below), whose sum is σ = 164911104. Its totient is φ = 113376120.

The previous prime is 138284659. The next prime is 138284701. The reversal of 138284671 is 176482831.

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 138284671 - 2¹⁷ = 138153599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138284371) 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, 429295 + ... + 429616.

It is an arithmetic number, because the mean of its divisors is an integer number (20613888).

Almost surely, 2^138284671 is an apocalyptic number.

138284671 is a deficient number, since it is larger than the sum of its proper divisors (26626433).

138284671 is an equidigital number, since it uses as much as digits as its factorization.

138284671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858941.

The product of its digits is 64512, while the sum is 40.

The square root of 138284671 is about 11759.4502847710. The cubic root of 138284671 is about 517.1200144893.

The spelling of 138284671 in words is "one hundred thirty-eight million, two hundred eighty-four thousand, six hundred seventy-one".