40115219 has 2 divisors, whose sum is σ = 40115220. Its totient is φ = 40115218.

The previous prime is 40115203. The next prime is 40115239. The reversal of 40115219 is 91251104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40115219 - 2⁴ = 40115203 is a prime.

It is a super-2 number, since 2×40115219² = 3218461590835922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40115194 and 40115203.

It is not a weakly prime, because it can be changed into another prime (40115239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057609 + 20057610.

It is an arithmetic number, because the mean of its divisors is an integer number (20057610).

Almost surely, 2^40115219 is an apocalyptic number.

40115219 is a deficient number, since it is larger than the sum of its proper divisors (1).

40115219 is an equidigital number, since it uses as much as digits as its factorization.

40115219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 40115219 is about 6333.6576320480. The cubic root of 40115219 is about 342.3232440832.

The spelling of 40115219 in words is "forty million, one hundred fifteen thousand, two hundred nineteen".