231426829 has 4 divisors (see below), whose sum is σ = 231557980. Its totient is φ = 231295680.

The previous prime is 231426791. The next prime is 231426847. The reversal of 231426829 is 928624132.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 193849929 + 37576900 = 13923^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 231426829 - 2¹⁹ = 230902541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231427829) 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, 62892 + ... + 66469.

It is an arithmetic number, because the mean of its divisors is an integer number (57889495).

Almost surely, 2^231426829 is an apocalyptic number.

It is an amenable number.

231426829 is a deficient number, since it is larger than the sum of its proper divisors (131151).

231426829 is a wasteful number, since it uses less digits than its factorization.

231426829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131150.

The product of its digits is 41472, while the sum is 37.

The square root of 231426829 is about 15212.7193164141. The cubic root of 231426829 is about 613.9569240188.

The spelling of 231426829 in words is "two hundred thirty-one million, four hundred twenty-six thousand, eight hundred twenty-nine".