130523381 has 2 divisors, whose sum is σ = 130523382. Its totient is φ = 130523380.

The previous prime is 130523357. The next prime is 130523441. The reversal of 130523381 is 183325031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120340900 + 10182481 = 10970^2 + 3191^2 .

It is a cyclic number.

It is not a de Polignac number, because 130523381 - 2⁶ = 130523317 is a prime.

It is a super-2 number, since 2×130523381² = 34072705975342322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 130523381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130523311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65261690 + 65261691.

It is an arithmetic number, because the mean of its divisors is an integer number (65261691).

Almost surely, 2^130523381 is an apocalyptic number.

It is an amenable number.

130523381 is a deficient number, since it is larger than the sum of its proper divisors (1).

130523381 is an equidigital number, since it uses as much as digits as its factorization.

130523381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 130523381 is about 11424.6829715314. The cubic root of 130523381 is about 507.2586228688.

The spelling of 130523381 in words is "one hundred thirty million, five hundred twenty-three thousand, three hundred eighty-one".