40142519 has 2 divisors, whose sum is σ = 40142520. Its totient is φ = 40142518.

The previous prime is 40142513. The next prime is 40142527. The reversal of 40142519 is 91524104.

40142519 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 40142519 - 2⁴ = 40142503 is a prime.

It is a super-2 number, since 2×40142519² = 3222843663330722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40142513) 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, 20071259 + 20071260.

It is an arithmetic number, because the mean of its divisors is an integer number (20071260).

Almost surely, 2^40142519 is an apocalyptic number.

40142519 is a deficient number, since it is larger than the sum of its proper divisors (1).

40142519 is an equidigital number, since it uses as much as digits as its factorization.

40142519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 40142519 is about 6335.8124183091. The cubic root of 40142519 is about 342.4008813293.

The spelling of 40142519 in words is "forty million, one hundred forty-two thousand, five hundred nineteen".