229131806 has 4 divisors (see below), whose sum is σ = 343697712. Its totient is φ = 114565902.

The previous prime is 229131769. The next prime is 229131809. The reversal of 229131806 is 608131922.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229131809) 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 as a sum of consecutive naturals, namely, 57282950 + ... + 57282953.

It is an arithmetic number, because the mean of its divisors is an integer number (85924428).

Almost surely, 2^229131806 is an apocalyptic number.

229131806 is a deficient number, since it is larger than the sum of its proper divisors (114565906).

229131806 is a wasteful number, since it uses less digits than its factorization.

229131806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114565905.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 229131806 is about 15137.1003167714. The cubic root of 229131806 is about 611.9206737145.

The spelling of 229131806 in words is "two hundred twenty-nine million, one hundred thirty-one thousand, eight hundred six".