130381 has 4 divisors (see below), whose sum is σ = 131164. Its totient is φ = 129600.

The previous prime is 130379. The next prime is 130399. The reversal of 130381 is 183031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 183031 = 103 ⋅1777.

It can be written as a sum of positive squares in 2 ways, for example, as 75625 + 54756 = 275^2 + 234^2 .

It is a 4-Lehmer number, since φ(130381) divides (130381-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 130381 - 2¹ = 130379 is a prime.

It is a super-2 number, since 2×130381² = 33998410322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130681) 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, 30 + ... + 511.

It is an arithmetic number, because the mean of its divisors is an integer number (32791).

2¹³⁰³⁸¹ is an apocalyptic number.

It is an amenable number.

130381 is a deficient number, since it is larger than the sum of its proper divisors (783).

130381 is an equidigital number, since it uses as much as digits as its factorization.

130381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 130381 is about 361.0830929301. The cubic root of 130381 is about 50.7074108628.

Subtracting 130381 from its reverse (183031), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 130381 in words is "one hundred thirty thousand, three hundred eighty-one".