40452541 has 2 divisors, whose sum is σ = 40452542. Its totient is φ = 40452540.

The previous prime is 40452509. The next prime is 40452563. The reversal of 40452541 is 14525404.

It is a happy number.

40452541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39062500 + 1390041 = 6250^2 + 1179^2 .

It is a cyclic number.

It is not a de Polignac number, because 40452541 - 2⁵ = 40452509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40452641) by changing a digit.

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 as a sum of consecutive naturals, namely, 20226270 + 20226271.

It is an arithmetic number, because the mean of its divisors is an integer number (20226271).

Almost surely, 2^40452541 is an apocalyptic number.

It is an amenable number.

40452541 is a deficient number, since it is larger than the sum of its proper divisors (1).

40452541 is an equidigital number, since it uses as much as digits as its factorization.

40452541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 40452541 is about 6360.2312064893. The cubic root of 40452541 is about 343.2800796112.

Adding to 40452541 its reverse (14525404), we get a palindrome (54977945).

The spelling of 40452541 in words is "forty million, four hundred fifty-two thousand, five hundred forty-one".