40747519 has 2 divisors, whose sum is σ = 40747520. Its totient is φ = 40747518.

The previous prime is 40747517. The next prime is 40747601. The reversal of 40747519 is 91574704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40747519 - 2¹ = 40747517 is a prime.

It is a super-2 number, since 2×40747519² = 3320720609310722, which contains 22 as substring.

Together with 40747517, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40747517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20373759 + 20373760.

It is an arithmetic number, because the mean of its divisors is an integer number (20373760).

Almost surely, 2^40747519 is an apocalyptic number.

40747519 is a deficient number, since it is larger than the sum of its proper divisors (1).

40747519 is an equidigital number, since it uses as much as digits as its factorization.

40747519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 40747519 is about 6383.3783375263. The cubic root of 40747519 is about 344.1124536576.

The spelling of 40747519 in words is "forty million, seven hundred forty-seven thousand, five hundred nineteen".