139802742 has 24 divisors (see below), whose sum is σ = 308042280. Its totient is φ = 45810720.

The previous prime is 139802737. The next prime is 139802749. The reversal of 139802742 is 247208931.

It is a junction number, because it is equal to n+sod(n) for n = 139802697 and 139802706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139802749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64759 + ... + 66882.

It is an arithmetic number, because the mean of its divisors is an integer number (12835095).

Almost surely, 2^139802742 is an apocalyptic number.

139802742 is an abundant number, since it is smaller than the sum of its proper divisors (168239538).

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

139802742 is a wasteful number, since it uses less digits than its factorization.

139802742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131708 (or 131705 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 139802742 is about 11823.8209560193. The cubic root of 139802742 is about 519.0054238911.

The spelling of 139802742 in words is "one hundred thirty-nine million, eight hundred two thousand, seven hundred forty-two".