13530379 has 2 divisors, whose sum is σ = 13530380. Its totient is φ = 13530378.

The previous prime is 13530373. The next prime is 13530397. The reversal of 13530379 is 97303531.

Together with next prime (13530397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13530379 - 2⁵ = 13530347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13530379.

It is not a weakly prime, because it can be changed into another prime (13530373) 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, 6765189 + 6765190.

It is an arithmetic number, because the mean of its divisors is an integer number (6765190).

Almost surely, 2^13530379 is an apocalyptic number.

13530379 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530379 is an equidigital number, since it uses as much as digits as its factorization.

13530379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 13530379 is about 3678.3663493459. The cubic root of 13530379 is about 238.2886301256.

The spelling of 13530379 in words is "thirteen million, five hundred thirty thousand, three hundred seventy-nine".