63543091 has 2 divisors, whose sum is σ = 63543092. Its totient is φ = 63543090.

The previous prime is 63543047. The next prime is 63543101. The reversal of 63543091 is 19034536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63543091 - 2²⁵ = 29988659 is a prime.

It is not a weakly prime, because it can be changed into another prime (63543041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31771545 + 31771546.

It is an arithmetic number, because the mean of its divisors is an integer number (31771546).

Almost surely, 2^63543091 is an apocalyptic number.

63543091 is a deficient number, since it is larger than the sum of its proper divisors (1).

63543091 is an equidigital number, since it uses as much as digits as its factorization.

63543091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 63543091 is about 7971.3920365266. The cubic root of 63543091 is about 399.0458319682.

The spelling of 63543091 in words is "sixty-three million, five hundred forty-three thousand, ninety-one".