231132450 has 48 divisors (see below), whose sum is σ = 574132896. Its totient is φ = 61536000.

The previous prime is 231132449. The next prime is 231132463. The reversal of 231132450 is 54231132.

231132450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179509 + ... + 180791.

It is an arithmetic number, because the mean of its divisors is an integer number (11961102).

Almost surely, 2^231132450 is an apocalyptic number.

231132450 is an abundant number, since it is smaller than the sum of its proper divisors (343000446).

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

231132450 is a wasteful number, since it uses less digits than its factorization.

231132450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 231132450 is about 15203.0408142582. The cubic root of 231132450 is about 613.6964922249.

Adding to 231132450 its reverse (54231132), we get a palindrome (285363582).

The spelling of 231132450 in words is "two hundred thirty-one million, one hundred thirty-two thousand, four hundred fifty".