231421754 has 16 divisors (see below), whose sum is σ = 358595208. Its totient is φ = 111926592.

The previous prime is 231421741. The next prime is 231421763. The reversal of 231421754 is 457124132.

231421754 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 198669025 + 32752729 = 14095^2 + 5723^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3764 + ... + 21840.

Almost surely, 2^231421754 is an apocalyptic number.

231421754 is a deficient number, since it is larger than the sum of its proper divisors (127173454).

231421754 is a wasteful number, since it uses less digits than its factorization.

231421754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18289.

The product of its digits is 6720, while the sum is 29.

The square root of 231421754 is about 15212.5525142890. The cubic root of 231421754 is about 613.9524361292.

Adding to 231421754 its reverse (457124132), we get a palindrome (688545886).

The spelling of 231421754 in words is "two hundred thirty-one million, four hundred twenty-one thousand, seven hundred fifty-four".