139090926 has 32 divisors (see below), whose sum is σ = 300172320. Its totient is φ = 42712704.

The previous prime is 139090879. The next prime is 139090937. The reversal of 139090926 is 629090931.

It is a happy number.

139090926 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46360 + ... + 49268.

It is an arithmetic number, because the mean of its divisors is an integer number (9380385).

Almost surely, 2^139090926 is an apocalyptic number.

139090926 is an abundant number, since it is smaller than the sum of its proper divisors (161081394).

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

139090926 is a wasteful number, since it uses less digits than its factorization.

139090926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 139090926 is about 11793.6816134742. The cubic root of 139090926 is about 518.1230731748.

The spelling of 139090926 in words is "one hundred thirty-nine million, ninety thousand, nine hundred twenty-six".