230181563 has 2 divisors, whose sum is σ = 230181564. Its totient is φ = 230181562.

The previous prime is 230181559. The next prime is 230181569. The reversal of 230181563 is 365181032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230181563 - 2² = 230181559 is a prime.

It is not a weakly prime, because it can be changed into another prime (230181569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115090781 + 115090782.

It is an arithmetic number, because the mean of its divisors is an integer number (115090782).

Almost surely, 2^230181563 is an apocalyptic number.

230181563 is a deficient number, since it is larger than the sum of its proper divisors (1).

230181563 is an equidigital number, since it uses as much as digits as its factorization.

230181563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 230181563 is about 15171.7356620790. The cubic root of 230181563 is about 612.8537458442.

The spelling of 230181563 in words is "two hundred thirty million, one hundred eighty-one thousand, five hundred sixty-three".