531630230 has 16 divisors (see below), whose sum is σ = 963274464. Its totient is φ = 211243200.

The previous prime is 531630221. The next prime is 531630247. The reversal of 531630230 is 32036135.

It is a junction number, because it is equal to n+sod(n) for n = 531630196 and 531630205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174527 + ... + 177546.

It is an arithmetic number, because the mean of its divisors is an integer number (60204654).

Almost surely, 2^531630230 is an apocalyptic number.

531630230 is a deficient number, since it is larger than the sum of its proper divisors (431644234).

531630230 is a wasteful number, since it uses less digits than its factorization.

531630230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352231.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 531630230 is about 23057.1080146665. The cubic root of 531630230 is about 810.0961273915.

Adding to 531630230 its reverse (32036135), we get a palindrome (563666365).

The spelling of 531630230 in words is "five hundred thirty-one million, six hundred thirty thousand, two hundred thirty".