138611546 has 16 divisors (see below), whose sum is σ = 214219680. Its totient is φ = 67217040.

The previous prime is 138611533. The next prime is 138611549. The reversal of 138611546 is 645116831.

It is not an unprimeable number, because it can be changed into a prime (138611549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21665 + ... + 27323.

It is an arithmetic number, because the mean of its divisors is an integer number (13388730).

Almost surely, 2^138611546 is an apocalyptic number.

138611546 is a deficient number, since it is larger than the sum of its proper divisors (75608134).

138611546 is a wasteful number, since it uses less digits than its factorization.

138611546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029.

The product of its digits is 17280, while the sum is 35.

The square root of 138611546 is about 11773.3404775365. The cubic root of 138611546 is about 517.5271470897.

The spelling of 138611546 in words is "one hundred thirty-eight million, six hundred eleven thousand, five hundred forty-six".