108145172519 has 2 divisors, whose sum is σ = 108145172520. Its totient is φ = 108145172518.

The previous prime is 108145172507. The next prime is 108145172533. The reversal of 108145172519 is 915271541801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108145172519 - 2¹² = 108145168423 is a prime.

It is a super-2 number, since 2×108145172519² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108145172519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108145172539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54072586259 + 54072586260.

It is an arithmetic number, because the mean of its divisors is an integer number (54072586260).

Almost surely, 2^108145172519 is an apocalyptic number.

108145172519 is a deficient number, since it is larger than the sum of its proper divisors (1).

108145172519 is an equidigital number, since it uses as much as digits as its factorization.

108145172519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 44.

The spelling of 108145172519 in words is "one hundred eight billion, one hundred forty-five million, one hundred seventy-two thousand, five hundred nineteen".