8145919 has 2 divisors, whose sum is σ = 8145920. Its totient is φ = 8145918.

The previous prime is 8145911. The next prime is 8145937. The reversal of 8145919 is 9195418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8145919 - 2³ = 8145911 is a prime.

It is a super-2 number, since 2×8145919² = 132711992709122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8145911) 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, 4072959 + 4072960.

It is an arithmetic number, because the mean of its divisors is an integer number (4072960).

Almost surely, 2^8145919 is an apocalyptic number.

8145919 is a deficient number, since it is larger than the sum of its proper divisors (1).

8145919 is an equidigital number, since it uses as much as digits as its factorization.

8145919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 37.

The square root of 8145919 is about 2854.1056392502. The cubic root of 8145919 is about 201.2086725061.

The spelling of 8145919 in words is "eight million, one hundred forty-five thousand, nine hundred nineteen".