108521519 has 2 divisors, whose sum is σ = 108521520. Its totient is φ = 108521518.

The previous prime is 108521507. The next prime is 108521537. The reversal of 108521519 is 915125801.

It is a weak prime.

It is an emirp because it is prime and its reverse (915125801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108521519 - 2⁴ = 108521503 is a prime.

It is a super-2 number, since 2×108521519² = 23553840172134722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108521549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54260759 + 54260760.

It is an arithmetic number, because the mean of its divisors is an integer number (54260760).

Almost surely, 2^108521519 is an apocalyptic number.

108521519 is a deficient number, since it is larger than the sum of its proper divisors (1).

108521519 is an equidigital number, since it uses as much as digits as its factorization.

108521519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 32.

The square root of 108521519 is about 10417.3662218432. The cubic root of 108521519 is about 476.9856219122.

The spelling of 108521519 in words is "one hundred eight million, five hundred twenty-one thousand, five hundred nineteen".