40545863 has 2 divisors, whose sum is σ = 40545864. Its totient is φ = 40545862.

The previous prime is 40545853. The next prime is 40545871. The reversal of 40545863 is 36854504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40545863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40545823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272931 + 20272932.

It is an arithmetic number, because the mean of its divisors is an integer number (20272932).

Almost surely, 2^40545863 is an apocalyptic number.

40545863 is a deficient number, since it is larger than the sum of its proper divisors (1).

40545863 is an equidigital number, since it uses as much as digits as its factorization.

40545863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 40545863 is about 6367.5633487230. The cubic root of 40545863 is about 343.5438535670.

The spelling of 40545863 in words is "forty million, five hundred forty-five thousand, eight hundred sixty-three".