229540871 has 4 divisors (see below), whose sum is σ = 262332432. Its totient is φ = 196749312.

The previous prime is 229540867. The next prime is 229540889. The reversal of 229540871 is 178045922.

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 229540871 - 2² = 229540867 is a prime.

It is a super-2 number, since 2×229540871² = 105378022918877282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229540841) 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, 16395770 + ... + 16395783.

It is an arithmetic number, because the mean of its divisors is an integer number (65583108).

Almost surely, 2^229540871 is an apocalyptic number.

229540871 is a deficient number, since it is larger than the sum of its proper divisors (32791561).

229540871 is an equidigital number, since it uses as much as digits as its factorization.

229540871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32791560.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 229540871 is about 15150.6062914987. The cubic root of 229540871 is about 612.2846076457.

The spelling of 229540871 in words is "two hundred twenty-nine million, five hundred forty thousand, eight hundred seventy-one".