40513219 has 2 divisors, whose sum is σ = 40513220. Its totient is φ = 40513218.

The previous prime is 40513217. The next prime is 40513237. The reversal of 40513219 is 91231504.

40513219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40513219 - 2¹ = 40513217 is a prime.

It is a super-2 number, since 2×40513219² = 3282641827483922, which contains 22 as substring.

Together with 40513217, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40513193 and 40513202.

It is not a weakly prime, because it can be changed into another prime (40513217) 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, 20256609 + 20256610.

It is an arithmetic number, because the mean of its divisors is an integer number (20256610).

Almost surely, 2^40513219 is an apocalyptic number.

40513219 is a deficient number, since it is larger than the sum of its proper divisors (1).

40513219 is an equidigital number, since it uses as much as digits as its factorization.

40513219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 40513219 is about 6364.9995286724. Note that the first 3 decimals coincide. The cubic root of 40513219 is about 343.4516316093.

The spelling of 40513219 in words is "forty million, five hundred thirteen thousand, two hundred nineteen".