40124065 has 4 divisors (see below), whose sum is σ = 48148884. Its totient is φ = 32099248.

The previous prime is 40124059. The next prime is 40124087. The reversal of 40124065 is 56042104.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7485696 + 32638369 = 2736^2 + 5713^2 .

It is a cyclic number.

It is not a de Polignac number, because 40124065 - 2⁵ = 40124033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4012402 + ... + 4012411.

It is an arithmetic number, because the mean of its divisors is an integer number (12037221).

Almost surely, 2^40124065 is an apocalyptic number.

It is an amenable number.

40124065 is a deficient number, since it is larger than the sum of its proper divisors (8024819).

40124065 is an equidigital number, since it uses as much as digits as its factorization.

40124065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8024818.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40124065 is about 6334.3559262170. The cubic root of 40124065 is about 342.3484046825.

Adding to 40124065 its reverse (56042104), we get a palindrome (96166169).

The spelling of 40124065 in words is "forty million, one hundred twenty-four thousand, sixty-five".