231228829 has 8 divisors (see below), whose sum is σ = 249899552. Its totient is φ = 212684400.

The previous prime is 231228827. The next prime is 231228869. The reversal of 231228829 is 928822132.

231228829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231228829 - 2¹ = 231228827 is a prime.

It is a super-2 number, since 2×231228829² = 106933542721422482, 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 (231228827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27747 + ... + 35104.

It is an arithmetic number, because the mean of its divisors is an integer number (31237444).

Almost surely, 2^231228829 is an apocalyptic number.

It is an amenable number.

231228829 is a deficient number, since it is larger than the sum of its proper divisors (18670723).

231228829 is a wasteful number, since it uses less digits than its factorization.

231228829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63147.

The product of its digits is 27648, while the sum is 37.

The square root of 231228829 is about 15206.2102116208. The cubic root of 231228829 is about 613.7817813235.

The spelling of 231228829 in words is "two hundred thirty-one million, two hundred twenty-eight thousand, eight hundred twenty-nine".