231532350 has 216 divisors, whose sum is σ = 716059080. Its totient is φ = 49351680.

The previous prime is 231532337. The next prime is 231532351. The reversal of 231532350 is 53235132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231532350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231532351) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 2124096 + ... + 2124204.

Almost surely, 2^231532350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231532350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358029540).

231532350 is an abundant number, since it is smaller than the sum of its proper divisors (484526730).

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

231532350 is a wasteful number, since it uses less digits than its factorization.

231532350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 231532350 is about 15216.1871045279. The cubic root of 231532350 is about 614.0502227731.

Adding to 231532350 its reverse (53235132), we get a palindrome (284767482).

The spelling of 231532350 in words is "two hundred thirty-one million, five hundred thirty-two thousand, three hundred fifty".