231000616 has 96 divisors (see below), whose sum is σ = 552726720. Its totient is φ = 88577280.

The previous prime is 231000611. The next prime is 231000619. The reversal of 231000616 is 616000132.

It is a super-2 number, since 2×231000616² = 106722569184758912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231000593 and 231000602.

It is not an unprimeable number, because it can be changed into a prime (231000611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494415 + ... + 494881.

It is an arithmetic number, because the mean of its divisors is an integer number (5757570).

Almost surely, 2^231000616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231000616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276363360).

231000616 is an abundant number, since it is smaller than the sum of its proper divisors (321726104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231000616 is a wasteful number, since it uses less digits than its factorization.

231000616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 231000616 is about 15198.7044184694. The cubic root of 231000616 is about 613.5797893695.

Adding to 231000616 its reverse (616000132), we get a palindrome (847000748).

The spelling of 231000616 in words is "two hundred thirty-one million, six hundred sixteen", and thus it is an aban number.