231141530 has 16 divisors (see below), whose sum is σ = 420175944. Its totient is φ = 91540800.

The previous prime is 231141529. The next prime is 231141539. The reversal of 231141530 is 35141132.

It can be written as a sum of positive squares in 4 ways, for example, as 224490289 + 6651241 = 14983^2 + 2579^2 .

It is not an unprimeable number, because it can be changed into a prime (231141539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113417 + ... + 115436.

Almost surely, 2^231141530 is an apocalyptic number.

231141530 is a deficient number, since it is larger than the sum of its proper divisors (189034414).

231141530 is a wasteful number, since it uses less digits than its factorization.

231141530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228961.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 231141530 is about 15203.3394357950. The cubic root of 231141530 is about 613.7045284414.

Adding to 231141530 its reverse (35141132), we get a palindrome (266282662).

The spelling of 231141530 in words is "two hundred thirty-one million, one hundred forty-one thousand, five hundred thirty".