139019140 has 48 divisors (see below), whose sum is σ = 315318528. Its totient is φ = 51179904.

The previous prime is 139019137. The next prime is 139019141. The reversal of 139019140 is 41910931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 139019099 and 139019108.

It is not an unprimeable number, because it can be changed into a prime (139019141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130249 + ... + 131311.

It is an arithmetic number, because the mean of its divisors is an integer number (6569136).

Almost surely, 2^139019140 is an apocalyptic number.

139019140 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 139019140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157659264).

139019140 is an abundant number, since it is smaller than the sum of its proper divisors (176299388).

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

139019140 is a wasteful number, since it uses less digits than its factorization.

139019140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 139019140 is about 11790.6378114163. The cubic root of 139019140 is about 518.0339219399.

The spelling of 139019140 in words is "one hundred thirty-nine million, nineteen thousand, one hundred forty".