231244057 has 8 divisors (see below), whose sum is σ = 260965440. Its totient is φ = 202972560.

The previous prime is 231244051. The next prime is 231244063. The reversal of 231244057 is 750442132.

It is an interprime number because it is at equal distance from previous prime (231244051) and next prime (231244063).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231244057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231244051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362133 + ... + 362770.

It is an arithmetic number, because the mean of its divisors is an integer number (32620680).

Almost surely, 2^231244057 is an apocalyptic number.

It is an amenable number.

231244057 is a deficient number, since it is larger than the sum of its proper divisors (29721383).

231244057 is a wasteful number, since it uses less digits than its factorization.

231244057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724943.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 231244057 is about 15206.7109198538. The cubic root of 231244057 is about 613.7952549372.

Adding to 231244057 its reverse (750442132), we get a palindrome (981686189).

The spelling of 231244057 in words is "two hundred thirty-one million, two hundred forty-four thousand, fifty-seven".