131770 has 8 divisors (see below), whose sum is σ = 237204.
Its totient is φ = 52704.
The previous prime is 131759. The next prime is 131771. The reversal of 131770 is 77131.
It is a happy number.
It is a Cunningham number, because it is equal to 3632+1.
It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 1 = 363^2 + 1^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (131771) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6579 + ... + 6598.
2131770 is an apocalyptic number.
131770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131770 is a deficient number, since it is larger than the sum of its proper divisors (105434).
131770 is a wasteful number, since it uses less digits than its factorization.
131770 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13184.
The product of its (nonzero) digits is 147, while the sum is 19.
The square root of 131770 is about 363.0013774079.
The cubic root of 131770 is about 50.8868438278.
The spelling of 131770 in words is "one hundred thirty-one thousand, seven hundred seventy".