138546115 has 4 divisors (see below), whose sum is σ = 166255344. Its totient is φ = 110836888.

The previous prime is 138546113. The next prime is 138546131. The reversal of 138546115 is 511645831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138546115 - 2¹ = 138546113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138546113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13854607 + ... + 13854616.

It is an arithmetic number, because the mean of its divisors is an integer number (41563836).

Almost surely, 2^138546115 is an apocalyptic number.

138546115 is a deficient number, since it is larger than the sum of its proper divisors (27709229).

138546115 is an equidigital number, since it uses as much as digits as its factorization.

138546115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27709228.

The product of its digits is 14400, while the sum is 34.

The square root of 138546115 is about 11770.5613714895. The cubic root of 138546115 is about 517.4457020987.

The spelling of 138546115 in words is "one hundred thirty-eight million, five hundred forty-six thousand, one hundred fifteen".