139370280 has 128 divisors (see below), whose sum is σ = 483840000. Its totient is φ = 31456512.

The previous prime is 139370269. The next prime is 139370281. The reversal of 139370280 is 82073931.

It is not an unprimeable number, because it can be changed into a prime (139370281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68721 + ... + 70719.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 2^139370280 is an apocalyptic number.

139370280 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 139370280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241920000).

139370280 is an abundant number, since it is smaller than the sum of its proper divisors (344469720).

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

139370280 is a wasteful number, since it uses less digits than its factorization.

139370280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 139370280 is about 11805.5190483096. The cubic root of 139370280 is about 518.4697120375.

The spelling of 139370280 in words is "one hundred thirty-nine million, three hundred seventy thousand, two hundred eighty".