229131563 has 4 divisors (see below), whose sum is σ = 234460248. Its totient is φ = 223802880.

The previous prime is 229131527. The next prime is 229131587. The reversal of 229131563 is 365131922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 229131563 - 2⁶ = 229131499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229131163) 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 in 3 ways as a sum of consecutive naturals, for example, 2664278 + ... + 2664363.

It is an arithmetic number, because the mean of its divisors is an integer number (58615062).

Almost surely, 2^229131563 is an apocalyptic number.

229131563 is a deficient number, since it is larger than the sum of its proper divisors (5328685).

229131563 is an equidigital number, since it uses as much as digits as its factorization.

229131563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328684.

The product of its digits is 9720, while the sum is 32.

The square root of 229131563 is about 15137.0922901329. The cubic root of 229131563 is about 611.9204573954.

The spelling of 229131563 in words is "two hundred twenty-nine million, one hundred thirty-one thousand, five hundred sixty-three".