130943 has 4 divisors (see below), whose sum is σ = 134520. Its totient is φ = 127368.
The previous prime is 130927. The next prime is 130957. The reversal of 130943 is 349031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349031 = 43 ⋅8117.
It is a cyclic number.
It is not a de Polignac number, because 130943 - 24 = 130927 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130973) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733 + ... + 1806.
It is an arithmetic number, because the mean of its divisors is an integer number (33630).
2130943 is an apocalyptic number.
130943 is a deficient number, since it is larger than the sum of its proper divisors (3577).
130943 is an equidigital number, since it uses as much as digits as its factorization.
130943 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3576.
The product of its (nonzero) digits is 324, while the sum is 20.
The square root of 130943 is about 361.8604703473. The cubic root of 130943 is about 50.7801635823.
Adding to 130943 its reverse (349031), we get a palindrome (479974).
The spelling of 130943 in words is "one hundred thirty thousand, nine hundred forty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •