115505219 has 2 divisors, whose sum is σ = 115505220. Its totient is φ = 115505218.

The previous prime is 115505213. The next prime is 115505227. The reversal of 115505219 is 912505511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115505219 - 2¹² = 115501123 is a prime.

It is a super-2 number, since 2×115505219² = 26682911232475922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 115505191 and 115505200.

It is not a weakly prime, because it can be changed into another prime (115505213) 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, 57752609 + 57752610.

It is an arithmetic number, because the mean of its divisors is an integer number (57752610).

Almost surely, 2^115505219 is an apocalyptic number.

115505219 is a deficient number, since it is larger than the sum of its proper divisors (1).

115505219 is an equidigital number, since it uses as much as digits as its factorization.

115505219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 29.

The square root of 115505219 is about 10747.3354372142. The cubic root of 115505219 is about 487.0055037487.

It can be divided in two parts, 115 and 505219, that multiplied together give a palindrome (58100185).

The spelling of 115505219 in words is "one hundred fifteen million, five hundred five thousand, two hundred nineteen".