138280115 has 8 divisors (see below), whose sum is σ = 166285440. Its totient is φ = 110391232.

The previous prime is 138280073. The next prime is 138280133. The reversal of 138280115 is 511082831.

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 138280115 - 2¹⁴ = 138263731 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26474 + ... + 31263.

It is an arithmetic number, because the mean of its divisors is an integer number (20785680).

Almost surely, 2^138280115 is an apocalyptic number.

138280115 is a deficient number, since it is larger than the sum of its proper divisors (28005325).

138280115 is an equidigital number, since it uses as much as digits as its factorization.

138280115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58221.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 138280115 is about 11759.2565666372. The cubic root of 138280115 is about 517.1143353236.

The spelling of 138280115 in words is "one hundred thirty-eight million, two hundred eighty thousand, one hundred fifteen".