231216627 has 8 divisors (see below), whose sum is σ = 310011840. Its totient is φ = 153282920.

The previous prime is 231216617. The next prime is 231216649. The reversal of 231216627 is 726612132.

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

It is a cyclic number.

It is not a de Polignac number, because 231216627 - 2⁴ = 231216611 is a prime.

It is a super-2 number, since 2×231216627² = 106922257202514258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231216594 and 231216603.

It is not an unprimeable number, because it can be changed into a prime (231216607) 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, 214749 + ... + 215822.

It is an arithmetic number, because the mean of its divisors is an integer number (38751480).

Almost surely, 2^231216627 is an apocalyptic number.

231216627 is a deficient number, since it is larger than the sum of its proper divisors (78795213).

231216627 is a wasteful number, since it uses less digits than its factorization.

231216627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430753.

The product of its digits is 6048, while the sum is 30.

The square root of 231216627 is about 15205.8089886727. The cubic root of 231216627 is about 613.7709846636.

Adding to 231216627 its reverse (726612132), we get a palindrome (957828759).

The spelling of 231216627 in words is "two hundred thirty-one million, two hundred sixteen thousand, six hundred twenty-seven".