138069415 has 16 divisors (see below), whose sum is σ = 182134656. Its totient is φ = 99642400.

The previous prime is 138069343. The next prime is 138069419. The reversal of 138069415 is 514960831.

138069415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138069415 - 2⁷ = 138069287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138069419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377 + ... + 16786.

It is an arithmetic number, because the mean of its divisors is an integer number (11383416).

Almost surely, 2^138069415 is an apocalyptic number.

138069415 is a deficient number, since it is larger than the sum of its proper divisors (44065241).

138069415 is a wasteful number, since it uses less digits than its factorization.

138069415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19310.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 138069415 is about 11750.2942516347. The cubic root of 138069415 is about 516.8515562133.

The spelling of 138069415 in words is "one hundred thirty-eight million, sixty-nine thousand, four hundred fifteen".