231239734 has 8 divisors (see below), whose sum is σ = 378392328. Its totient is φ = 105108960.

The previous prime is 231239731. The next prime is 231239737. The reversal of 231239734 is 437932132.

It is an interprime number because it is at equal distance from previous prime (231239731) and next prime (231239737).

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

It is a self number, because there is not a number n which added to its sum of digits gives 231239734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231239731) 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 3 ways as a sum of consecutive naturals, for example, 5255427 + ... + 5255470.

It is an arithmetic number, because the mean of its divisors is an integer number (47299041).

Almost surely, 2^231239734 is an apocalyptic number.

231239734 is a deficient number, since it is larger than the sum of its proper divisors (147152594).

231239734 is a wasteful number, since it uses less digits than its factorization.

231239734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510910.

The product of its digits is 27216, while the sum is 34.

The square root of 231239734 is about 15206.5687779985. The cubic root of 231239734 is about 613.7914300412.

The spelling of 231239734 in words is "two hundred thirty-one million, two hundred thirty-nine thousand, seven hundred thirty-four".