130320493 has 2 divisors, whose sum is σ = 130320494. Its totient is φ = 130320492.

The previous prime is 130320479. The next prime is 130320499. The reversal of 130320493 is 394023031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129095044 + 1225449 = 11362^2 + 1107^2 .

It is an emirp because it is prime and its reverse (394023031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130320493 - 2²¹ = 128223341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130320499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65160246 + 65160247.

It is an arithmetic number, because the mean of its divisors is an integer number (65160247).

Almost surely, 2^130320493 is an apocalyptic number.

It is an amenable number.

130320493 is a deficient number, since it is larger than the sum of its proper divisors (1).

130320493 is an equidigital number, since it uses as much as digits as its factorization.

130320493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 130320493 is about 11415.8001471645. The cubic root of 130320493 is about 506.9956557846.

The spelling of 130320493 in words is "one hundred thirty million, three hundred twenty thousand, four hundred ninety-three".