531350645 has 32 divisors (see below), whose sum is σ = 741097728. Its totient is φ = 358207488.

The previous prime is 531350579. The next prime is 531350647. The reversal of 531350645 is 546053135.

It is a cyclic number.

It is not a de Polignac number, because 531350645 - 2¹² = 531346549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531350647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 920597 + ... + 921173.

It is an arithmetic number, because the mean of its divisors is an integer number (23159304).

Almost surely, 2^531350645 is an apocalyptic number.

It is an amenable number.

531350645 is a deficient number, since it is larger than the sum of its proper divisors (209747083).

531350645 is a wasteful number, since it uses less digits than its factorization.

531350645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 531350645 is about 23051.0443364287. The cubic root of 531350645 is about 809.9540923024.

The spelling of 531350645 in words is "five hundred thirty-one million, three hundred fifty thousand, six hundred forty-five".