138414871 has 8 divisors (see below), whose sum is σ = 158326784. Its totient is φ = 118537560.

The previous prime is 138414869. The next prime is 138414889. The reversal of 138414871 is 178414831.

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 138414871 - 2¹ = 138414869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138414871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138414821) 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, 586 + ... + 16648.

It is an arithmetic number, because the mean of its divisors is an integer number (19790848).

Almost surely, 2^138414871 is an apocalyptic number.

138414871 is a deficient number, since it is larger than the sum of its proper divisors (19911913).

138414871 is a wasteful number, since it uses less digits than its factorization.

138414871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17301.

The product of its digits is 21504, while the sum is 37.

The square root of 138414871 is about 11764.9849553665. The cubic root of 138414871 is about 517.2822592885.

The spelling of 138414871 in words is "one hundred thirty-eight million, four hundred fourteen thousand, eight hundred seventy-one".