139258 has 20 divisors (see below), whose sum is σ = 252090. Its totient is φ = 57624.

The previous prime is 139241. The next prime is 139267. The reversal of 139258 is 852931.

It can be written as a sum of positive squares in only one way, i.e., 117649 + 21609 = 343^2 + 147^2 .

It is a d-powerful number, because it can be written as 1 + 3³ + 2¹¹ + 9⁵ + 5⁷ + 8 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4788 + ... + 4816.

139258 is a Friedman number, since it can be written as 58*(9-2)^(3+1), using all its digits and the basic arithmetic operations.

2¹³⁹²⁵⁸ is an apocalyptic number.

139258 is a deficient number, since it is larger than the sum of its proper divisors (112832).

139258 is an frugal number, since it uses more digits than its factorization.

139258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 38 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 139258 is about 373.1728821873. The cubic root of 139258 is about 51.8330444137.

The spelling of 139258 in words is "one hundred thirty-nine thousand, two hundred fifty-eight".