138041515 has 8 divisors (see below), whose sum is σ = 172852128. Its totient is φ = 105631680.

The previous prime is 138041489. The next prime is 138041539. The reversal of 138041515 is 515140831.

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

It is not a de Polignac number, because 138041515 - 2⁵ = 138041483 is a prime.

It is a super-3 number, since 3×138041515³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600066 + ... + 600295.

It is an arithmetic number, because the mean of its divisors is an integer number (21606516).

Almost surely, 2^138041515 is an apocalyptic number.

138041515 is a deficient number, since it is larger than the sum of its proper divisors (34810613).

138041515 is a wasteful number, since it uses less digits than its factorization.

138041515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200389.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 138041515 is about 11749.1069873416. The cubic root of 138041515 is about 516.8167400792.

The spelling of 138041515 in words is "one hundred thirty-eight million, forty-one thousand, five hundred fifteen".