131930 has 16 divisors (see below), whose sum is σ = 241920. Its totient is φ = 51792.

The previous prime is 131927. The next prime is 131933. The reversal of 131930 is 39131.

It is an interprime number because it is at equal distance from previous prime (131927) and next prime (131933).

It is an Ulam number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 131899 and 131908.

It is not an unprimeable number, because it can be changed into a prime (131933) 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 7 ways as a sum of consecutive naturals, for example, 707 + ... + 873.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2¹³¹⁹³⁰ is an apocalyptic number.

131930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131930 is a deficient number, since it is larger than the sum of its proper divisors (109990).

131930 is a wasteful number, since it uses less digits than its factorization.

131930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 131930 is about 363.2216953873. The cubic root of 131930 is about 50.9074317255.

The spelling of 131930 in words is "one hundred thirty-one thousand, nine hundred thirty".