40242115135 has 4 divisors (see below), whose sum is σ = 48290538168. Its totient is φ = 32193692104.

The previous prime is 40242115099. The next prime is 40242115181. The reversal of 40242115135 is 53151124204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40242115135 - 2¹⁵ = 40242082367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4024211509 + ... + 4024211518.

It is an arithmetic number, because the mean of its divisors is an integer number (12072634542).

Almost surely, 2^40242115135 is an apocalyptic number.

40242115135 is a deficient number, since it is larger than the sum of its proper divisors (8048423033).

40242115135 is an equidigital number, since it uses as much as digits as its factorization.

40242115135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8048423032.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 40242115135 its reverse (53151124204), we get a palindrome (93393239339).

The spelling of 40242115135 in words is "forty billion, two hundred forty-two million, one hundred fifteen thousand, one hundred thirty-five".