231424739 has 8 divisors (see below), whose sum is σ = 284830560. Its totient is φ = 183105216.

The previous prime is 231424729. The next prime is 231424747. The reversal of 231424739 is 937424132.

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

It is not a de Polignac number, because 231424739 - 2¹⁶ = 231359203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231424699 and 231424708.

It is not an unprimeable number, because it can be changed into a prime (231424709) 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, 1271474 + ... + 1271655.

It is an arithmetic number, because the mean of its divisors is an integer number (35603820).

Almost surely, 2^231424739 is an apocalyptic number.

231424739 is a deficient number, since it is larger than the sum of its proper divisors (53405821).

231424739 is a wasteful number, since it uses less digits than its factorization.

231424739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543149.

The product of its digits is 36288, while the sum is 35.

The square root of 231424739 is about 15212.6506237408. The cubic root of 231424739 is about 613.9550758121.

The spelling of 231424739 in words is "two hundred thirty-one million, four hundred twenty-four thousand, seven hundred thirty-nine".