531212150 has 24 divisors (see below), whose sum is σ = 1129206000. Its totient is φ = 182129760.

The previous prime is 531212147. The next prime is 531212159. The reversal of 531212150 is 51212135.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531212159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758525 + ... + 759224.

It is an arithmetic number, because the mean of its divisors is an integer number (47050250).

Almost surely, 2^531212150 is an apocalyptic number.

531212150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

531212150 is an abundant number, since it is smaller than the sum of its proper divisors (597993850).

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

531212150 is a wasteful number, since it uses less digits than its factorization.

531212150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517768 (or 1517763 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 531212150 is about 23048.0400468239. The cubic root of 531212150 is about 809.8837154615.

Adding to 531212150 its reverse (51212135), we get a palindrome (582424285).

The spelling of 531212150 in words is "five hundred thirty-one million, two hundred twelve thousand, one hundred fifty".