139090 has 16 divisors (see below), whose sum is σ = 286272. Its totient is φ = 47664.

The previous prime is 139079. The next prime is 139091. The reversal of 139090 is 90931.

139090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (139091) by changing a digit.

139090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (17892).

2¹³⁹⁰⁹⁰ is an apocalyptic number.

139090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139090 is an abundant number, since it is smaller than the sum of its proper divisors (147182).

It is a weird number, because it is abundant, but not a pseudoperfect number.

139090 is a wasteful number, since it uses less digits than its factorization.

139090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 139090 is about 372.9477175155. The cubic root of 139090 is about 51.8121923368.

The spelling of 139090 in words is "one hundred thirty-nine thousand, ninety".