139584042 has 48 divisors (see below), whose sum is σ = 344864520. Its totient is φ = 40421376.

The previous prime is 139584019. The next prime is 139584061. The reversal of 139584042 is 240485931.

139584042 is a `hidden beast` number, since 1 + 39 + 584 + 0 + 42 = 666.

139584042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 130165281 + 9418761 = 11409^2 + 3069^2 .

It is a junction number, because it is equal to n+sod(n) for n = 139583988 and 139584006.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13567 + ... + 21522.

Almost surely, 2^139584042 is an apocalyptic number.

139584042 is an abundant number, since it is smaller than the sum of its proper divisors (205280478).

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

139584042 is a wasteful number, since it uses less digits than its factorization.

139584042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35127 (or 35124 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 139584042 is about 11814.5690568890. The cubic root of 139584042 is about 518.7346477868.

The spelling of 139584042 in words is "one hundred thirty-nine million, five hundred eighty-four thousand, forty-two".