130932481 has 2 divisors, whose sum is σ = 130932482. Its totient is φ = 130932480.

The previous prime is 130932479. The next prime is 130932511. The reversal of 130932481 is 184239031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121198081 + 9734400 = 11009^2 + 3120^2 .

It is an emirp because it is prime and its reverse (184239031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130932481 - 2¹ = 130932479 is a prime.

It is a super-2 number, since 2×130932481² = 34286629161630722, which contains 22 as substring.

Together with 130932479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (130932281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65466240 + 65466241.

It is an arithmetic number, because the mean of its divisors is an integer number (65466241).

Almost surely, 2^130932481 is an apocalyptic number.

It is an amenable number.

130932481 is a deficient number, since it is larger than the sum of its proper divisors (1).

130932481 is an equidigital number, since it uses as much as digits as its factorization.

130932481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 130932481 is about 11442.5731808890. The cubic root of 130932481 is about 507.7880377726.

The spelling of 130932481 in words is "one hundred thirty million, nine hundred thirty-two thousand, four hundred eighty-one".