139807272 has 96 divisors (see below), whose sum is σ = 396829440. Its totient is φ = 40972800.

The previous prime is 139807259. The next prime is 139807273. The reversal of 139807272 is 272708931.

It is a self number, because there is not a number n which added to its sum of digits gives 139807272.

It is not an unprimeable number, because it can be changed into a prime (139807273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89248 + ... + 90800.

It is an arithmetic number, because the mean of its divisors is an integer number (4133640).

Almost surely, 2^139807272 is an apocalyptic number.

139807272 is a gapful number since it is divisible by the number (12) 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 139807272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198414720).

139807272 is an abundant number, since it is smaller than the sum of its proper divisors (257022168).

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

139807272 is a wasteful number, since it uses less digits than its factorization.

139807272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 139807272 is about 11824.0125169081. The cubic root of 139807272 is about 519.0110295732.

The spelling of 139807272 in words is "one hundred thirty-nine million, eight hundred seven thousand, two hundred seventy-two".