138266716 has 12 divisors (see below), whose sum is σ = 276533488. Its totient is φ = 59257152.

The previous prime is 138266683. The next prime is 138266741. The reversal of 138266716 is 617662831.

It is a happy number.

138266716 is an admirable number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2469021 + ... + 2469076.

Almost surely, 2^138266716 is an apocalyptic number.

It is an amenable number.

138266716 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138266716 is a wasteful number, since it uses less digits than its factorization.

138266716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938108 (or 4938106 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 138266716 is about 11758.6868314451. The cubic root of 138266716 is about 517.0976324188.

The spelling of 138266716 in words is "one hundred thirty-eight million, two hundred sixty-six thousand, seven hundred sixteen".