40012519 has 2 divisors, whose sum is σ = 40012520. Its totient is φ = 40012518.

The previous prime is 40012517. The next prime is 40012573. The reversal of 40012519 is 91521004.

40012519 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 40012519 - 2¹ = 40012517 is a prime.

It is a super-2 number, since 2×40012519² = 3202003353450722, which contains 22 as substring.

Together with 40012517, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40012519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40012517) 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, 20006259 + 20006260.

It is an arithmetic number, because the mean of its divisors is an integer number (20006260).

Almost surely, 2^40012519 is an apocalyptic number.

40012519 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012519 is an equidigital number, since it uses as much as digits as its factorization.

40012519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 40012519 is about 6325.5449567606. The cubic root of 40012519 is about 342.0308642619.

The spelling of 40012519 in words is "forty million, twelve thousand, five hundred nineteen".