231315214 has 16 divisors (see below), whose sum is σ = 380715552. Its totient is φ = 104745888.

The previous prime is 231315197. The next prime is 231315229. The reversal of 231315214 is 412513132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82554 + ... + 85309.

It is an arithmetic number, because the mean of its divisors is an integer number (23794722).

Almost surely, 2^231315214 is an apocalyptic number.

231315214 is a deficient number, since it is larger than the sum of its proper divisors (149400338).

231315214 is a wasteful number, since it uses less digits than its factorization.

231315214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167931.

The product of its digits is 720, while the sum is 22.

The square root of 231315214 is about 15209.0503977073. The cubic root of 231315214 is about 613.8582062485.

Adding to 231315214 its reverse (412513132), we get a palindrome (643828346).

It can be divided in two parts, 2 and 31315214, that added together give a square (31315216 = 5596²).

The spelling of 231315214 in words is "two hundred thirty-one million, three hundred fifteen thousand, two hundred fourteen".