231134730 has 32 divisors (see below), whose sum is σ = 555496704. Its totient is φ = 61550016.

The previous prime is 231134723. The next prime is 231134779. The reversal of 231134730 is 37431132.

231134730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231134730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18207 + ... + 28173.

It is an arithmetic number, because the mean of its divisors is an integer number (17359272).

Almost surely, 2^231134730 is an apocalyptic number.

231134730 is an abundant number, since it is smaller than the sum of its proper divisors (324361974).

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

231134730 is a wasteful number, since it uses less digits than its factorization.

231134730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10750.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 231134730 is about 15203.1157990722. The cubic root of 231134730 is about 613.6985101493.

Adding to 231134730 its reverse (37431132), we get a palindrome (268565862).

The spelling of 231134730 in words is "two hundred thirty-one million, one hundred thirty-four thousand, seven hundred thirty".