139741656 has 72 divisors (see below), whose sum is σ = 371635020. Its totient is φ = 43781472.

The previous prime is 139741643. The next prime is 139741661. The reversal of 139741656 is 656147931.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 1100265 + ... + 1100391.

Almost surely, 2^139741656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139741656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185817510).

139741656 is an abundant number, since it is smaller than the sum of its proper divisors (231893364).

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

139741656 is a wasteful number, since it uses less digits than its factorization.

139741656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 151 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 139741656 is about 11821.2374986716. The cubic root of 139741656 is about 518.9298207386.

The spelling of 139741656 in words is "one hundred thirty-nine million, seven hundred forty-one thousand, six hundred fifty-six".