131090 has 8 divisors (see below), whose sum is σ = 235980. Its totient is φ = 52432.
The previous prime is 131071. The next prime is 131101. The reversal of 131090 is 90131.
It can be written as a sum of positive squares in 2 ways, for example, as 128881 + 2209 = 359^2 + 47^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 13.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (3) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6545 + ... + 6564.
2131090 is an apocalyptic number.
131090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131090 is a deficient number, since it is larger than the sum of its proper divisors (104890).
131090 is a wasteful number, since it uses less digits than its factorization.
131090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13116.
The product of its (nonzero) digits is 27, while the sum is 14.
The square root of 131090 is about 362.0635303369. The cubic root of 131090 is about 50.7991588511.
The spelling of 131090 in words is "one hundred thirty-one thousand, ninety".
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