139483620 has 120 divisors (see below), whose sum is σ = 452806200. Its totient is φ = 35900928.

The previous prime is 139483613. The next prime is 139483679. The reversal of 139483620 is 26384931.

It can be written as a sum of positive squares in 4 ways, for example, as 54756 + 139428864 = 234^2 + 11808^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45496 + ... + 48464.

It is an arithmetic number, because the mean of its divisors is an integer number (3773385).

Almost surely, 2^139483620 is an apocalyptic number.

139483620 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 139483620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226403100).

139483620 is an abundant number, since it is smaller than the sum of its proper divisors (313322580).

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

139483620 is a wasteful number, since it uses less digits than its factorization.

139483620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 139483620 is about 11810.3183699678. The cubic root of 139483620 is about 518.6102188826.

The spelling of 139483620 in words is "one hundred thirty-nine million, four hundred eighty-three thousand, six hundred twenty".