138415336 has 16 divisors (see below), whose sum is σ = 260303940. Its totient is φ = 69000960.

The previous prime is 138415331. The next prime is 138415339. The reversal of 138415336 is 633514831.

It can be written as a sum of positive squares in 2 ways, for example, as 138062500 + 352836 = 11750^2 + 594^2 .

It is not an unprimeable number, because it can be changed into a prime (138415331) 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, 22975 + ... + 28366.

Almost surely, 2^138415336 is an apocalyptic number.

It is an amenable number.

138415336 is a deficient number, since it is larger than the sum of its proper divisors (121888604).

138415336 is a wasteful number, since it uses less digits than its factorization.

138415336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51684 (or 51680 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 138415336 is about 11765.0047173811. The cubic root of 138415336 is about 517.2828385518.

The spelling of 138415336 in words is "one hundred thirty-eight million, four hundred fifteen thousand, three hundred thirty-six".