231534130 has 8 divisors (see below), whose sum is σ = 416761452. Its totient is φ = 92613648.

The previous prime is 231534119. The next prime is 231534131. The reversal of 231534130 is 31435132.

It can be written as a sum of positive squares in 2 ways, for example, as 207100881 + 24433249 = 14391^2 + 4943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (231534131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11576697 + ... + 11576716.

Almost surely, 2^231534130 is an apocalyptic number.

231534130 is a deficient number, since it is larger than the sum of its proper divisors (185227322).

231534130 is a wasteful number, since it uses less digits than its factorization.

231534130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23153420.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 231534130 is about 15216.2455947583. The cubic root of 231534130 is about 614.0517963568.

Adding to 231534130 its reverse (31435132), we get a palindrome (262969262).

It can be divided in two parts, 231 and 534130, that added together give a square (534361 = 731²).

The spelling of 231534130 in words is "two hundred thirty-one million, five hundred thirty-four thousand, one hundred thirty".