40865135 has 16 divisors (see below), whose sum is σ = 51399360. Its totient is φ = 31130880.

The previous prime is 40865129. The next prime is 40865141. The reversal of 40865135 is 53156804.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40865129) and next prime (40865141).

It is not a de Polignac number, because 40865135 - 2¹⁶ = 40799599 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30275 + ... + 31595.

It is an arithmetic number, because the mean of its divisors is an integer number (3212460).

Almost surely, 2^40865135 is an apocalyptic number.

40865135 is a deficient number, since it is larger than the sum of its proper divisors (10534225).

40865135 is a wasteful number, since it uses less digits than its factorization.

40865135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 40865135 is about 6392.5843756653. The cubic root of 40865135 is about 344.4432243183.

The spelling of 40865135 in words is "forty million, eight hundred sixty-five thousand, one hundred thirty-five".