139541328 has 30 divisors (see below), whose sum is σ = 390522314. Its totient is φ = 46513728.

The previous prime is 139541309. The next prime is 139541333. The reversal of 139541328 is 823145931.

It can be written as a sum of positive squares in only one way, i.e., 113039424 + 26501904 = 10632^2 + 5148^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 139541292 and 139541301.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 484375 + ... + 484662.

Almost surely, 2^139541328 is an apocalyptic number.

139541328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139541328 is an abundant number, since it is smaller than the sum of its proper divisors (250980986).

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

139541328 is a wasteful number, since it uses less digits than its factorization.

139541328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969051 (or 969042 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 139541328 is about 11812.7612352066. The cubic root of 139541328 is about 518.6817298651.

The spelling of 139541328 in words is "one hundred thirty-nine million, five hundred forty-one thousand, three hundred twenty-eight".