231645060 has 216 divisors, whose sum is σ = 769049736. Its totient is φ = 56401920.

The previous prime is 231645059. The next prime is 231645061. The reversal of 231645060 is 60546132.

231645060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231645059) and next prime (231645061).

It can be written as a sum of positive squares in 12 ways, for example, as 41370624 + 190274436 = 6432^2 + 13794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231645061) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3173184 + ... + 3173256.

Almost surely, 2^231645060 is an apocalyptic number.

231645060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231645060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384524868).

231645060 is an abundant number, since it is smaller than the sum of its proper divisors (537404676).

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

231645060 is a wasteful number, since it uses less digits than its factorization.

231645060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 231645060 is about 15219.8902755572. The cubic root of 231645060 is about 614.1498465381.

It can be divided in two parts, 23164 and 5060, that added together give a square (28224 = 168²).

The spelling of 231645060 in words is "two hundred thirty-one million, six hundred forty-five thousand, sixty".