139025206 has 16 divisors (see below), whose sum is σ = 214652880. Its totient is φ = 67482720.

The previous prime is 139025141. The next prime is 139025221. The reversal of 139025206 is 602520931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35821 + ... + 39511.

It is an arithmetic number, because the mean of its divisors is an integer number (13415805).

Almost surely, 2^139025206 is an apocalyptic number.

139025206 is a deficient number, since it is larger than the sum of its proper divisors (75627674).

139025206 is a wasteful number, since it uses less digits than its factorization.

139025206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 139025206 is about 11790.8950466027. The cubic root of 139025206 is about 518.0414565092.

The spelling of 139025206 in words is "one hundred thirty-nine million, twenty-five thousand, two hundred six".