45515219 has 2 divisors, whose sum is σ = 45515220. Its totient is φ = 45515218.

The previous prime is 45515201. The next prime is 45515233. The reversal of 45515219 is 91251554.

45515219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45515219 is a prime.

It is a super-2 number, since 2×45515219² = 4143270321235922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45515269) 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, 22757609 + 22757610.

It is an arithmetic number, because the mean of its divisors is an integer number (22757610).

Almost surely, 2^45515219 is an apocalyptic number.

45515219 is a deficient number, since it is larger than the sum of its proper divisors (1).

45515219 is an equidigital number, since it uses as much as digits as its factorization.

45515219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 32.

The square root of 45515219 is about 6746.4967946335. The cubic root of 45515219 is about 357.0416484036.

The spelling of 45515219 in words is "forty-five million, five hundred fifteen thousand, two hundred nineteen".