531024145 has 8 divisors (see below), whose sum is σ = 638075304. Its totient is φ = 424255104.

The previous prime is 531024047. The next prime is 531024187. The reversal of 531024145 is 541420135.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 81414529 + 449609616 = 9023^2 + 21204^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 531024145 - 2¹¹ = 531022097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66364 + ... + 73933.

It is an arithmetic number, because the mean of its divisors is an integer number (79759413).

Almost surely, 2^531024145 is an apocalyptic number.

It is an amenable number.

531024145 is a deficient number, since it is larger than the sum of its proper divisors (107051159).

531024145 is a wasteful number, since it uses less digits than its factorization.

531024145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141059.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 531024145 is about 23043.9611395263. The cubic root of 531024145 is about 809.7881603214.

The spelling of 531024145 in words is "five hundred thirty-one million, twenty-four thousand, one hundred forty-five".