139899328 has 28 divisors (see below), whose sum is σ = 278116792. Its totient is φ = 69822720.

The previous prime is 139899293. The next prime is 139899329. The reversal of 139899328 is 823998931.

139899328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139899329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40651 + ... + 43957.

Almost surely, 2^139899328 is an apocalyptic number.

It is an amenable number.

139899328 is a deficient number, since it is larger than the sum of its proper divisors (138217464).

139899328 is an equidigital number, since it uses as much as digits as its factorization.

139899328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980 (or 3970 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The square root of 139899328 is about 11827.9046326896. The cubic root of 139899328 is about 519.1249187293.

The spelling of 139899328 in words is "one hundred thirty-nine million, eight hundred ninety-nine thousand, three hundred twenty-eight".