40504133 has 2 divisors, whose sum is σ = 40504134. Its totient is φ = 40504132.

The previous prime is 40504099. The next prime is 40504171. The reversal of 40504133 is 33140504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31730689 + 8773444 = 5633^2 + 2962^2 .

It is a cyclic number.

It is not a de Polignac number, because 40504133 - 2⁶ = 40504069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40504733) by changing a digit.

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 as a sum of consecutive naturals, namely, 20252066 + 20252067.

It is an arithmetic number, because the mean of its divisors is an integer number (20252067).

Almost surely, 2^40504133 is an apocalyptic number.

It is an amenable number.

40504133 is a deficient number, since it is larger than the sum of its proper divisors (1).

40504133 is an equidigital number, since it uses as much as digits as its factorization.

40504133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40504133 is about 6364.2857415424. The cubic root of 40504133 is about 343.4259541068.

Adding to 40504133 its reverse (33140504), we get a palindrome (73644637).

The spelling of 40504133 in words is "forty million, five hundred four thousand, one hundred thirty-three".