139029474042 has 12 divisors (see below), whose sum is σ = 301230527130. Its totient is φ = 46343158008.

The previous prime is 139029474013. The next prime is 139029474047. The reversal of 139029474042 is 240474920931.

139029474042 is a `hidden beast` number, since 139 + 0 + 2 + 9 + 474 + 0 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 122563708281 + 16465765761 = 350091^2 + 128319^2 .

It is not an unprimeable number, because it can be changed into a prime (139029474047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3861929817 + ... + 3861929852.

Almost surely, 2^139029474042 is an apocalyptic number.

139029474042 is an abundant number, since it is smaller than the sum of its proper divisors (162201053088).

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

139029474042 is a wasteful number, since it uses less digits than its factorization.

139029474042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723859677 (or 7723859674 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 139029474042 in words is "one hundred thirty-nine billion, twenty-nine million, four hundred seventy-four thousand, forty-two".