139103228 has 12 divisors (see below), whose sum is σ = 265560792. Its totient is φ = 63228720.

The previous prime is 139103219. The next prime is 139103243. The reversal of 139103228 is 822301931.

139103228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 139103228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580675 + ... + 1580762.

It is an arithmetic number, because the mean of its divisors is an integer number (22130066).

Almost surely, 2^139103228 is an apocalyptic number.

It is an amenable number.

139103228 is a deficient number, since it is larger than the sum of its proper divisors (126457564).

139103228 is a wasteful number, since it uses less digits than its factorization.

139103228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161452 (or 3161450 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 139103228 is about 11794.2031523965. The cubic root of 139103228 is about 518.1383479842.

The spelling of 139103228 in words is "one hundred thirty-nine million, one hundred three thousand, two hundred twenty-eight".