139134340 has 48 divisors (see below), whose sum is σ = 308891520. Its totient is φ = 52496640.

The previous prime is 139134253. The next prime is 139134353. The reversal of 139134340 is 43431931.

It is a junction number, because it is equal to n+sod(n) for n = 139134299 and 139134308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106129 + ... + 107431.

It is an arithmetic number, because the mean of its divisors is an integer number (6435240).

Almost surely, 2^139134340 is an apocalyptic number.

139134340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139134340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154445760).

139134340 is an abundant number, since it is smaller than the sum of its proper divisors (169757180).

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

139134340 is a wasteful number, since it uses less digits than its factorization.

139134340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 139134340 is about 11795.5220316864. The cubic root of 139134340 is about 518.1769742592.

The spelling of 139134340 in words is "one hundred thirty-nine million, one hundred thirty-four thousand, three hundred forty".