131069 has 4 divisors (see below), whose sum is σ = 133596. Its totient is φ = 128544.
The previous prime is 131063. The next prime is 131071. The reversal of 131069 is 960131.
131069 is nontrivially palindromic in base 4.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 96100 + 34969 = 310^2 + 187^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131069 is a prime.
It is a super-2 number, since 2×1310692 = 34358165522, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 131069.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131063) 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, 1184 + ... + 1289.
It is an arithmetic number, because the mean of its divisors is an integer number (33399).
2131069 is an apocalyptic number.
It is an amenable number.
131069 is a deficient number, since it is larger than the sum of its proper divisors (2527).
131069 is an equidigital number, since it uses as much as digits as its factorization.
131069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2526.
The product of its (nonzero) digits is 162, while the sum is 20.
The square root of 131069 is about 362.0345287400. The cubic root of 131069 is about 50.7964461109.
The spelling of 131069 in words is "one hundred thirty-one thousand, sixty-nine".
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