40520135 has 8 divisors (see below), whose sum is σ = 50738400. Its totient is φ = 31006624.

The previous prime is 40520111. The next prime is 40520149. The reversal of 40520135 is 53102504.

40520135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40520135 - 2⁶ = 40520071 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 176060 + ... + 176289.

It is an arithmetic number, because the mean of its divisors is an integer number (6342300).

Almost surely, 2^40520135 is an apocalyptic number.

40520135 is a deficient number, since it is larger than the sum of its proper divisors (10218265).

40520135 is a wasteful number, since it uses less digits than its factorization.

40520135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352377.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 40520135 is about 6365.5427891108. The cubic root of 40520135 is about 343.4711740072.

Adding to 40520135 its reverse (53102504), we get a palindrome (93622639).

The spelling of 40520135 in words is "forty million, five hundred twenty thousand, one hundred thirty-five".