40135205 has 16 divisors (see below), whose sum is σ = 53089344. Its totient is φ = 28884480.

The previous prime is 40135177. The next prime is 40135213. The reversal of 40135205 is 50253104.

It is not a de Polignac number, because 40135205 - 2⁶ = 40135141 is a prime.

It is a super-2 number, since 2×40135205² = 3221669360784050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1574 + ... + 9096.

It is an arithmetic number, because the mean of its divisors is an integer number (3318084).

Almost surely, 2^40135205 is an apocalyptic number.

It is an amenable number.

40135205 is a deficient number, since it is larger than the sum of its proper divisors (12954139).

40135205 is a wasteful number, since it uses less digits than its factorization.

40135205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636.

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

The square root of 40135205 is about 6335.2351968968. The cubic root of 40135205 is about 342.3800848254.

Adding to 40135205 its reverse (50253104), we get a palindrome (90388309).

The spelling of 40135205 in words is "forty million, one hundred thirty-five thousand, two hundred five".