138117371 has 8 divisors (see below), whose sum is σ = 157920000. Its totient is φ = 118332648.

The previous prime is 138117347. The next prime is 138117373. The reversal of 138117371 is 173711831.

138117371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 138117371 - 2²² = 133923067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138117373) 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, 25130 + ... + 30128.

It is an arithmetic number, because the mean of its divisors is an integer number (19740000).

Almost surely, 2^138117371 is an apocalyptic number.

138117371 is a deficient number, since it is larger than the sum of its proper divisors (19802629).

138117371 is an equidigital number, since it uses as much as digits as its factorization.

138117371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8953.

The product of its digits is 3528, while the sum is 32.

The square root of 138117371 is about 11752.3347042194. The cubic root of 138117371 is about 516.9113890738.

The spelling of 138117371 in words is "one hundred thirty-eight million, one hundred seventeen thousand, three hundred seventy-one".