139008320 has 224 divisors, whose sum is σ = 402921216. Its totient is φ = 45056000.

The previous prime is 139008263. The next prime is 139008323. The reversal of 139008320 is 23800931.

It is a self number, because there is not a number n which added to its sum of digits gives 139008320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139008323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376270 + ... + 1376370.

Almost surely, 2^139008320 is an apocalyptic number.

139008320 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 139008320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201460608).

139008320 is an abundant number, since it is smaller than the sum of its proper divisors (263912896).

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

139008320 is a wasteful number, since it uses less digits than its factorization.

139008320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 139008320 is about 11790.1789638665. The cubic root of 139008320 is about 518.0204818901.

The spelling of 139008320 in words is "one hundred thirty-nine million, eight thousand, three hundred twenty".