138092197 has 8 divisors (see below), whose sum is σ = 142780160. Its totient is φ = 133418880.

The previous prime is 138092183. The next prime is 138092219. The reversal of 138092197 is 791290831.

138092197 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 138092197 - 2²⁷ = 3874469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138092107) 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, 17554 + ... + 24172.

It is an arithmetic number, because the mean of its divisors is an integer number (17847520).

Almost surely, 2^138092197 is an apocalyptic number.

It is an amenable number.

138092197 is a deficient number, since it is larger than the sum of its proper divisors (4687963).

138092197 is an equidigital number, since it uses as much as digits as its factorization.

138092197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7323.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 138092197 is about 11751.2636341799. The cubic root of 138092197 is about 516.8799821675.

The spelling of 138092197 in words is "one hundred thirty-eight million, ninety-two thousand, one hundred ninety-seven".