138120846 has 16 divisors (see below), whose sum is σ = 276887808. Its totient is φ = 45932600.

The previous prime is 138120839. The next prime is 138120877. The reversal of 138120846 is 648021831.

138120846 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24120 + ... + 29291.

It is an arithmetic number, because the mean of its divisors is an integer number (17305488).

Almost surely, 2^138120846 is an apocalyptic number.

138120846 is an abundant number, since it is smaller than the sum of its proper divisors (138766962).

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

138120846 is a wasteful number, since it uses less digits than its factorization.

138120846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53847.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 138120846 is about 11752.4825462538. The cubic root of 138120846 is about 516.9157241597.

The spelling of 138120846 in words is "one hundred thirty-eight million, one hundred twenty thousand, eight hundred forty-six".