2145104519 has 2 divisors, whose sum is σ = 2145104520. Its totient is φ = 2145104518.

The previous prime is 2145104513. The next prime is 2145104527. The reversal of 2145104519 is 9154015412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145104519 - 2¹² = 2145100423 is a prime.

It is a super-2 number, since 2×2145104519² = 9202946794868442722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145104513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072552259 + 1072552260.

It is an arithmetic number, because the mean of its divisors is an integer number (1072552260).

Almost surely, 2^2145104519 is an apocalyptic number.

2145104519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145104519 is an equidigital number, since it uses as much as digits as its factorization.

2145104519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 2145104519 is about 46315.2730640768. The cubic root of 2145104519 is about 1289.6825369073.

The spelling of 2145104519 in words is "two billion, one hundred forty-five million, one hundred four thousand, five hundred nineteen".