83158 has 4 divisors (see below), whose sum is σ = 124740. Its totient is φ = 41578.
The previous prime is 83137. The next prime is 83177. The reversal of 83158 is 85138.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85138 = 2 ⋅42569.
It is a congruent number.
It is an unprimeable number.
83158 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 as a sum of consecutive naturals, namely, 20788 + ... + 20791.
It is an arithmetic number, because the mean of its divisors is an integer number (31185).
283158 is an apocalyptic number.
83158 is a deficient number, since it is larger than the sum of its proper divisors (41582).
83158 is a wasteful number, since it uses less digits than its factorization.
83158 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41581.
The product of its digits is 960, while the sum is 25.
The square root of 83158 is about 288.3712884460. The cubic root of 83158 is about 43.6483681724.
The spelling of 83158 in words is "eighty-three thousand, one hundred fifty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •