229849831 has 4 divisors (see below), whose sum is σ = 229889664. Its totient is φ = 229810000.

The previous prime is 229849799. The next prime is 229849861. The reversal of 229849831 is 138948922.

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 229849831 - 2⁵ = 229849799 is a prime.

It is a super-2 number, since 2×229849831² = 105661889621457122, 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 (229849861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9415 + ... + 23416.

It is an arithmetic number, because the mean of its divisors is an integer number (57472416).

Almost surely, 2^229849831 is an apocalyptic number.

229849831 is a deficient number, since it is larger than the sum of its proper divisors (39833).

229849831 is an equidigital number, since it uses as much as digits as its factorization.

229849831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39832.

The product of its digits is 248832, while the sum is 46.

The square root of 229849831 is about 15160.7991543982. The cubic root of 229849831 is about 612.5591943901.

Subtracting from 229849831 its reverse (138948922), we obtain a palindrome (90900909).

The spelling of 229849831 in words is "two hundred twenty-nine million, eight hundred forty-nine thousand, eight hundred thirty-one".