138461546 has 8 divisors (see below), whose sum is σ = 211611204. Its totient is φ = 67924480.

The previous prime is 138461507. The next prime is 138461567. The reversal of 138461546 is 645164831.

It can be written as a sum of positive squares in 2 ways, for example, as 133148521 + 5313025 = 11539^2 + 2305^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653015 + ... + 653226.

Almost surely, 2^138461546 is an apocalyptic number.

138461546 is a deficient number, since it is larger than the sum of its proper divisors (73149658).

138461546 is a wasteful number, since it uses less digits than its factorization.

138461546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306296.

The product of its digits is 69120, while the sum is 38.

The square root of 138461546 is about 11766.9684286141. The cubic root of 138461546 is about 517.3403971554.

The spelling of 138461546 in words is "one hundred thirty-eight million, four hundred sixty-one thousand, five hundred forty-six".