138345097 has 8 divisors (see below), whose sum is σ = 151008480. Its totient is φ = 125696160.

The previous prime is 138345073. The next prime is 138345113. The reversal of 138345097 is 790543831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138345097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138345047) 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, 30354 + ... + 34612.

It is an arithmetic number, because the mean of its divisors is an integer number (18876060).

Almost surely, 2^138345097 is an apocalyptic number.

It is an amenable number.

138345097 is a deficient number, since it is larger than the sum of its proper divisors (12663383).

138345097 is a wasteful number, since it uses less digits than its factorization.

138345097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 138345097 is about 11762.0192569133. The cubic root of 138345097 is about 517.1953251835.

The spelling of 138345097 in words is "one hundred thirty-eight million, three hundred forty-five thousand, ninety-seven".