138144097 has 8 divisors (see below), whose sum is σ = 170023616. Its totient is φ = 109300752.

The previous prime is 138144089. The next prime is 138144101. The reversal of 138144097 is 790441831.

138144097 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 a cyclic number.

It is not a de Polignac number, because 138144097 - 2³ = 138144089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138144007) 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, 758943 + ... + 759124.

It is an arithmetic number, because the mean of its divisors is an integer number (21252952).

Almost surely, 2^138144097 is an apocalyptic number.

It is an amenable number.

138144097 is a deficient number, since it is larger than the sum of its proper divisors (31879519).

138144097 is a wasteful number, since it uses less digits than its factorization.

138144097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518087.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 138144097 is about 11753.4716998851. The cubic root of 138144097 is about 516.9447280682.

The spelling of 138144097 in words is "one hundred thirty-eight million, one hundred forty-four thousand, ninety-seven".