231944229 has 48 divisors (see below), whose sum is σ = 399060480. Its totient is φ = 133144560.

The previous prime is 231944227. The next prime is 231944249. The reversal of 231944229 is 922449132.

It is not a de Polignac number, because 231944229 - 2¹ = 231944227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231944193 and 231944202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231944227) 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 47 ways as a sum of consecutive naturals, for example, 48504 + ... + 53070.

It is an arithmetic number, because the mean of its divisors is an integer number (8313760).

Almost surely, 2^231944229 is an apocalyptic number.

It is an amenable number.

231944229 is a deficient number, since it is larger than the sum of its proper divisors (167116251).

231944229 is a wasteful number, since it uses less digits than its factorization.

231944229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612 (or 4600 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 231944229 is about 15229.7153289219. The cubic root of 231944229 is about 614.4141237827.

The spelling of 231944229 in words is "two hundred thirty-one million, nine hundred forty-four thousand, two hundred twenty-nine".