139459320 has 640 divisors, whose sum is σ = 643991040. Its totient is φ = 26127360.

The previous prime is 139459301. The next prime is 139459337. The reversal of 139459320 is 23954931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3243219 + ... + 3243261.

It is an arithmetic number, because the mean of its divisors is an integer number (1006236).

Almost surely, 2^139459320 is an apocalyptic number.

139459320 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 139459320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321995520).

139459320 is an abundant number, since it is smaller than the sum of its proper divisors (504531720).

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

139459320 is a wasteful number, since it uses less digits than its factorization.

139459320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 139459320 is about 11809.2895637291. The cubic root of 139459320 is about 518.5801007458.

The spelling of 139459320 in words is "one hundred thirty-nine million, four hundred fifty-nine thousand, three hundred twenty".