531230000 has 100 divisors (see below), whose sum is σ = 1470091920. Its totient is φ = 182112000.

The previous prime is 531229973. The next prime is 531230017. The reversal of 531230000 is 32135.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66206 + ... + 73794.

Almost surely, 2^531230000 is an apocalyptic number.

531230000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735045960).

531230000 is an abundant number, since it is smaller than the sum of its proper divisors (938861920).

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

531230000 is an equidigital number, since it uses as much as digits as its factorization.

531230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624 (or 7603 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 531230000 is about 23048.4272782331. The cubic root of 531230000 is about 809.8927867038.

Adding to 531230000 its reverse (32135), we get a palindrome (531262135).

The spelling of 531230000 in words is "five hundred thirty-one million, two hundred thirty thousand".