139589742 has 16 divisors (see below), whose sum is σ = 279377280. Its totient is φ = 46496952.

The previous prime is 139589741. The next prime is 139589767. The reversal of 139589742 is 247985931.

139589742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139589691 and 139589700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139589741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893 + ... + 16815.

It is an arithmetic number, because the mean of its divisors is an integer number (17461080).

Almost surely, 2^139589742 is an apocalyptic number.

139589742 is an abundant number, since it is smaller than the sum of its proper divisors (139787538).

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

139589742 is a wasteful number, since it uses less digits than its factorization.

139589742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16487.

The product of its digits is 544320, while the sum is 48.

The square root of 139589742 is about 11814.8102820147. The cubic root of 139589742 is about 518.7417086399.

The spelling of 139589742 in words is "one hundred thirty-nine million, five hundred eighty-nine thousand, seven hundred forty-two".