231210255 has 16 divisors (see below), whose sum is σ = 373332960. Its totient is φ = 122179968.

The previous prime is 231210227. The next prime is 231210263. The reversal of 231210255 is 552012132.

It is not a de Polignac number, because 231210255 - 2⁵ = 231210223 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69072 + ... + 72341.

It is an arithmetic number, because the mean of its divisors is an integer number (23333310).

Almost surely, 2^231210255 is an apocalyptic number.

231210255 is a deficient number, since it is larger than the sum of its proper divisors (142122705).

231210255 is a wasteful number, since it uses less digits than its factorization.

231210255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141530.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 231210255 is about 15205.5994620403. The cubic root of 231210255 is about 613.7653463946.

Adding to 231210255 its reverse (552012132), we get a palindrome (783222387).

The spelling of 231210255 in words is "two hundred thirty-one million, two hundred ten thousand, two hundred fifty-five".